chamilo / chamilo-lms

main/auth/external_login/facebook.inc.php

Unused Use Statements -6 removed lines

@@ -18,14 +18,8 @@
 use Facebook\FacebookSession;
 use Facebook\FacebookRedirectLoginHelper;
 use Facebook\FacebookRequest;
-use Facebook\FacebookResponse;
 use Facebook\FacebookSDKException;
 use Facebook\FacebookRequestException;
-use Facebook\FacebookAuthorizationException;
-use Facebook\GraphObject;
-use Facebook\Entities\AccessToken;
-use Facebook\HttpClients\FacebookCurlHttpClient;
-use Facebook\HttpClients\FacebookHttpable;
 
 require_once dirname(__FILE__) . '/functions.inc.php';
 

Spacing +8 added lines, -8 removed lines

@@ -11,9 +11,9 @@ 
  * Please edit the facebook.conf.php file to adapt it to your fb application parameter
  */
 
-require_once dirname(__FILE__) . '/../../inc/global.inc.php';
-require_once dirname(__FILE__) . '/facebook.init.php';
-require_once dirname(__FILE__) . '/facebook-php-sdk/autoload.php';
+require_once dirname(__FILE__).'/../../inc/global.inc.php';
+require_once dirname(__FILE__).'/facebook.init.php';
+require_once dirname(__FILE__).'/facebook-php-sdk/autoload.php';
 
 use Facebook\FacebookSession;
 use Facebook\FacebookRedirectLoginHelper;
@@ -27,7 +27,7 @@ 
 use Facebook\HttpClients\FacebookCurlHttpClient;
 use Facebook\HttpClients\FacebookHttpable;
 
-require_once dirname(__FILE__) . '/functions.inc.php';
+require_once dirname(__FILE__).'/functions.inc.php';
 
 // dont rename $facebook_config to $facebookConfig otherwise get a "Facebook\\FacebookSDKException"
 FacebookSession::setDefaultApplication($facebook_config['appId'], $facebook_config['secret']);
@@ -57,7 +57,7 @@ 
             $locale = $graphObject->getProperty('locale');
             $language = facebookPluginGetLanguage($locale);
             if (!$language) {
-                $language='en_US';
+                $language = 'en_US';
             }
 
             //Checks if user already exists in chamilo
@@ -85,7 +85,7 @@ 
                     $_user['user_id'] = $chamilo_uid;
                     $_user['uidReset'] = true;
                     $_SESSION['_user'] = $_user;
-                    header('Location:' . api_get_path(WEB_PATH));
+                    header('Location:'.api_get_path(WEB_PATH));
                     exit();
                 } else {
                     return false;
@@ -98,7 +98,7 @@ 
                 $_user['user_id'] = $chamilo_uid;
                 $_user['uidReset'] = true;
                 $_SESSION['_user'] = $_user;
-                header('Location:' . api_get_path(WEB_PATH));
+                header('Location:'.api_get_path(WEB_PATH));
                 exit();
             }
         }
@@ -117,7 +117,7 @@ 
 {
     global $facebook_config;
     $helper = new FacebookRedirectLoginHelper($facebook_config['return_url']);
-    $loginUrl =   $helper->getLoginUrl(
+    $loginUrl = $helper->getLoginUrl(
         array('scope' => 'email')
     );
 

main/inc/lib/exercise.lib.php

Unused Use Statements -2 removed lines

@@ -1,8 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
-
 /**
  * Class ExerciseLib
  * shows a question and its answers

Spacing +118 added lines, -118 removed lines

@@ -65,7 +65,7 @@ 
                 if ($show_title) {
                     TestCategory::displayCategoryAndTitle($objQuestionTmp->id);
                     echo Display::div(
-                        $current_item . '. ' . $objQuestionTmp->selectTitle(),
+                        $current_item.'. '.$objQuestionTmp->selectTitle(),
                         array('class' => 'question_title')
                     );
                 }
@@ -161,8 +161,8 @@ 
                 $config = array(
                     'ToolbarSet' => 'TestFreeAnswer'
                 );
-                $form->addHtmlEditor("choice[" . $questionId . "]", null, false, false, $config);
-                $form->setDefaults(array("choice[" . $questionId . "]" => $fck_content));
+                $form->addHtmlEditor("choice[".$questionId."]", null, false, false, $config);
+                $form->setDefaults(array("choice[".$questionId."]" => $fck_content));
                 $s .= $form->returnForm();
             } elseif ($answerType == ORAL_EXPRESSION) {
                 // Add nanog
@@ -191,7 +191,7 @@ 
                 $config = array(
                     'ToolbarSet' => 'TestFreeAnswer'
                 );
-                $form->addHtmlEditor("choice[" . $questionId . "]", null, false, false, $config);
+                $form->addHtmlEditor("choice[".$questionId."]", null, false, false, $config);
                 //$form->setDefaults(array("choice[" . $questionId . "]" => $fck_content));
                 $s .= $form->returnForm();
             }
@@ -272,7 +272,7 @@ 
 
                 // Unique answer
                 if (in_array($answerType, [UNIQUE_ANSWER, UNIQUE_ANSWER_NO_OPTION, UNIQUE_ANSWER_IMAGE])) {
-                    $input_id = 'choice-' . $questionId . '-' . $answerId;
+                    $input_id = 'choice-'.$questionId.'-'.$answerId;
                     if (isset($user_choice[0]['answer']) && $user_choice[0]['answer'] == $numAnswer) {
                         $attributes = array(
                             'id' => $input_id,
@@ -297,14 +297,14 @@ 
                     if ($answerType == UNIQUE_ANSWER_IMAGE) {
                         if ($show_comment) {
                             if (empty($comment)) {
-                                $s .= '<div id="answer' . $questionId . $numAnswer . '" '
+                                $s .= '<div id="answer'.$questionId.$numAnswer.'" '
                                     . 'class="exercise-unique-answer-image" style="text-align: center">';
                             } else {
-                                $s .= '<div id="answer' . $questionId . $numAnswer . '" '
+                                $s .= '<div id="answer'.$questionId.$numAnswer.'" '
                                     . 'class="exercise-unique-answer-image col-xs-6 col-sm-12" style="text-align: center">';
                             }
                         } else {
-                            $s .= '<div id="answer' . $questionId . $numAnswer . '" '
+                            $s .= '<div id="answer'.$questionId.$numAnswer.'" '
                                 . 'class="exercise-unique-answer-image col-xs-6 col-md-3" style="text-align: center">';
                         }
                     }
@@ -312,7 +312,7 @@ 
                     $answer = Security::remove_XSS($answer, STUDENT);
                     $s .= Display::input(
                         'hidden',
-                        'choice2[' . $questionId . ']',
+                        'choice2['.$questionId.']',
                         '0'
                     );
 
@@ -320,13 +320,13 @@ 
 
                     if ($answerType == UNIQUE_ANSWER_IMAGE) {
                         $attributes['style'] = 'display: none;';
-                        $answer = '<div class="thumbnail">' . $answer . '</div>';
+                        $answer = '<div class="thumbnail">'.$answer.'</div>';
                     }
 
                     $answer_input .= '<label class="radio">';
                     $answer_input .= Display::input(
                         'radio',
-                        'choice[' . $questionId . ']',
+                        'choice['.$questionId.']',
                         $numAnswer,
                         $attributes
                     );
@@ -353,7 +353,7 @@ 
                     $answerType == MULTIPLE_ANSWER_TRUE_FALSE ||
                     $answerType == GLOBAL_MULTIPLE_ANSWER
                 ) {
-                    $input_id = 'choice-' . $questionId . '-' . $answerId;
+                    $input_id = 'choice-'.$questionId.'-'.$answerId;
                     $answer = Security::remove_XSS($answer, STUDENT);
 
                     if (in_array($numAnswer, $user_choice_array)) {
@@ -374,12 +374,12 @@ 
                     }
 
                     if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
-                        $s .= '<input type="hidden" name="choice2[' . $questionId . ']" value="0" />';
+                        $s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
 
                         $answer_input = '<label class="checkbox">';
                         $answer_input .= Display::input(
                             'checkbox',
-                            'choice[' . $questionId . '][' . $numAnswer . ']',
+                            'choice['.$questionId.']['.$numAnswer.']',
                             $numAnswer,
                             $attributes
                         );
@@ -432,7 +432,7 @@ 
                                     'td',
                                     Display::input(
                                         'radio',
-                                        'choice[' . $questionId . '][' . $numAnswer . ']',
+                                        'choice['.$questionId.']['.$numAnswer.']',
                                         $id,
                                         $attributes
                                     ),
@@ -450,7 +450,7 @@ 
                     }
                 } elseif ($answerType == MULTIPLE_ANSWER_COMBINATION) {
                     // multiple answers
-                    $input_id = 'choice-' . $questionId . '-' . $answerId;
+                    $input_id = 'choice-'.$questionId.'-'.$answerId;
 
                     if (in_array($numAnswer, $user_choice_array)) {
                         $attributes = array(
@@ -470,11 +470,11 @@ 
                     }
 
                     $answer = Security::remove_XSS($answer, STUDENT);
-                    $answer_input = '<input type="hidden" name="choice2[' . $questionId . ']" value="0" />';
+                    $answer_input = '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
                     $answer_input .= '<label class="checkbox">';
                     $answer_input .= Display::input(
                         'checkbox',
-                        'choice[' . $questionId . '][' . $numAnswer . ']',
+                        'choice['.$questionId.']['.$numAnswer.']',
                         1,
                         $attributes
                     );
@@ -495,7 +495,7 @@ 
                     }
 
                 } elseif ($answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
-                    $s .= '<input type="hidden" name="choice2[' . $questionId . ']" value="0" />';
+                    $s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
 
                     $my_choice = array();
                     if (!empty($user_choice_array)) {
@@ -530,7 +530,7 @@ 
                             'td',
                             Display::input(
                                 'radio',
-                                'choice[' . $questionId . '][' . $numAnswer . ']',
+                                'choice['.$questionId.']['.$numAnswer.']',
                                 $key,
                                 $attributes
                             )
@@ -626,8 +626,8 @@ 
                         $trackAttempts = Database::get_main_table(
                             TABLE_STATISTIC_TRACK_E_ATTEMPT
                         );
-                        $sql = 'SELECT answer FROM ' . $trackAttempts . '
-                                WHERE exe_id=' . $exe_id . ' AND question_id=' . $questionId;
+                        $sql = 'SELECT answer FROM '.$trackAttempts.'
+                                WHERE exe_id=' . $exe_id.' AND question_id='.$questionId;
                         $rsLastAttempt = Database::query($sql);
                         $rowLastAttempt = Database::fetch_array($rsLastAttempt);
                         $answer = $rowLastAttempt['answer'];
@@ -682,7 +682,7 @@ 
                                 '',
                                 $answerCorrected
                             );
-                            $answerCorrected = '[' . $answerCorrected . ']';
+                            $answerCorrected = '['.$answerCorrected.']';
                             $studentAnswerList[] = $answerCorrected;
                         }
                     }
@@ -701,7 +701,7 @@ 
                     */
                     $tabComments = api_preg_split(
                         '/\[[^]]+\]/',
-                        ' ' . $answer . ' '
+                        ' '.$answer.' '
                     );
                     if (!empty($correctAnswerList) && !empty($studentAnswerList)) {
                         $answer = "";
@@ -718,7 +718,7 @@ 
                                 $size
                             );
 
-                            $answer .= $tabComments[$i] .
+                            $answer .= $tabComments[$i].
                                 Display::input(
                                     'text',
                                     "choice[$questionId][]",
@@ -764,12 +764,12 @@ 
                         $s .= '<tr><td width="45%" valign="top">';
                         $parsed_answer = $answer;
                         //left part questions
-                        $s .= '<p class="indent">' . $lines_count . '.&nbsp;' . $parsed_answer . '</p></td>';
+                        $s .= '<p class="indent">'.$lines_count.'.&nbsp;'.$parsed_answer.'</p></td>';
                         //middle part (matches selects)
 
                         $s .= '<td width="10%" valign="top" align="center" >
                                 <div class="select-matching">
-                                <select name="choice[' . $questionId . '][' . $numAnswer . ']">';
+                                <select name="choice[' . $questionId.']['.$numAnswer.']">';
 
                         // fills the list-box
                         foreach ($select_items as $key => $val) {
@@ -785,14 +785,14 @@ 
                             if (isset($user_choice_array_position[$numAnswer]) && $val['id'] == $user_choice_array_position[$numAnswer]) {
                                 $selected = 'selected="selected"';
                             }
-                            $s .= '<option value="' . $val['id'] . '" ' . $selected . '>' . $val['letter'] . '</option>';
+                            $s .= '<option value="'.$val['id'].'" '.$selected.'>'.$val['letter'].'</option>';
 
                         }  // end foreach()
 
                         $s .= '</select></div></td><td width="5%" class="separate">&nbsp;</td>';
                         $s .= '<td width="40%" valign="top" >';
                         if (isset($select_items[$lines_count])) {
-                            $s .= '<div class="text-right"><p class="indent">' . $select_items[$lines_count]['letter'].'.&nbsp; '. $select_items[$lines_count]['answer'].'</p></div>';
+                            $s .= '<div class="text-right"><p class="indent">'.$select_items[$lines_count]['letter'].'.&nbsp; '.$select_items[$lines_count]['answer'].'</p></div>';
                         } else {
                             $s .= '&nbsp;';
                         }
@@ -807,7 +807,7 @@ 
                                 $s .= '<tr>
                                       <td colspan="2"></td>
                                       <td valign="top">';
-                                $s .= '<b>' . $select_items[$lines_count]['letter'] . '.</b> ' . $select_items[$lines_count]['answer'];
+                                $s .= '<b>'.$select_items[$lines_count]['letter'].'.</b> '.$select_items[$lines_count]['answer'];
                                 $s .= "</td>
                                 </tr>";
                                 $lines_count++;
@@ -823,9 +823,9 @@ 
                         $data = $objAnswerTmp->getAnswerByAutoId($data['correct']);
                         $lines_count = $data['answer'];*/
 
-                        $windowId = $questionId . '_' . $lines_count;
+                        $windowId = $questionId.'_'.$lines_count;
 
-                        $s .= '<li class="touch-items" id="' . $windowId . '">';
+                        $s .= '<li class="touch-items" id="'.$windowId.'">';
                         $s .= Display::div(
                             $parsed_answer,
                             [
@@ -883,7 +883,7 @@ 
                                 Display::tag(
                                     'b',
                                     $select_items[$lines_count]['letter']
-                                ) . $select_items[$lines_count]['answer'],
+                                ).$select_items[$lines_count]['answer'],
                                 [
                                     'id' => "window_{$windowId}_answer",
                                     'style' => 'display: none;'
@@ -1027,7 +1027,7 @@ 
 
             if ($show_comment) {
                 $s .= '</table>';
-            } elseif(
+            } elseif (
                 in_array(
                     $answerType,
                     [
@@ -1052,7 +1052,7 @@ 
 
                 for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
                     $answerCorrect = $objAnswerTmp->isCorrect($answerId);
-                    $windowId = $questionId . '_' . $counterAnswer;
+                    $windowId = $questionId.'_'.$counterAnswer;
 
                     if ($answerCorrect) {
                         $s .= Display::div(
@@ -1097,7 +1097,7 @@ 
                 $course = api_get_course_info();
                 $doc_id = DocumentManager::get_document_id(
                     $course,
-                    '/images/' . $pictureName
+                    '/images/'.$pictureName
                 );
                 if (is_numeric($doc_id)) {
                     $images_folder_visibility = api_get_item_visibility(
@@ -1122,7 +1122,7 @@ 
                 echo "
                     <script>
                         $(document).on('ready', function () {
-                            new " . ($answerType == HOT_SPOT ?  "HotspotQuestion" : "DelineationQuestion" ) . "({
+                            new " . ($answerType == HOT_SPOT ? "HotspotQuestion" : "DelineationQuestion")."({
                                 questionId: $questionId,
                                 exerciseId: $exerciseId,
                                 selector: '#hotspot-preview-$questionId',
@@ -1156,7 +1156,7 @@ 
             if ($answerType != HOT_SPOT_DELINEATION) {
                 $answerList = '
                     <div class="well well-sm">
-                        <h5 class="page-header">' . get_lang('HotspotZones') . '</h5>
+                        <h5 class="page-header">' . get_lang('HotspotZones').'</h5>
                         <ol>
                 ';
 
@@ -1181,7 +1181,7 @@ 
             if (!$only_questions) {
                 if ($show_title) {
                     TestCategory::displayCategoryAndTitle($objQuestionTmp->id);
-                    echo '<div class="question_title">' . $current_item . '. ' . $questionName . '</div>';
+                    echo '<div class="question_title">'.$current_item.'. '.$questionName.'</div>';
                 }
                 //@todo I need to the get the feedback type
                 echo <<<HOTSPOT
@@ -1199,7 +1199,7 @@ 
                                 <div class=\"hotspot-image\"></div>
                                 <script>
                                     $(document).on('ready', function () {
-                                        new " . ($answerType == HOT_SPOT_DELINEATION ? 'DelineationQuestion' : 'HotspotQuestion') . "({
+                                        new " . ($answerType == HOT_SPOT_DELINEATION ? 'DelineationQuestion' : 'HotspotQuestion')."({
                                             questionId: $questionId,
                                             exerciseId: $exe_id,
                                             selector: '#question_div_' + $questionId + ' .hotspot-image',
@@ -1318,11 +1318,11 @@ 
         $lp_id = intval($lp_id);
         $lp_item_id = intval($lp_item_id);
         return
-            api_get_course_int_id() . '_' .
-            api_get_session_id() . '_' .
-            $exercise_id . '_' .
-            api_get_user_id() . '_' .
-            $lp_id . '_' .
+            api_get_course_int_id().'_'.
+            api_get_session_id().'_'.
+            $exercise_id.'_'.
+            api_get_user_id().'_'.
+            $lp_id.'_'.
             $lp_item_id;
     }
 
@@ -1434,14 +1434,14 @@ 
         $res = Database::query($sql);
         $result = array();
         $apiIsAllowedToEdit = api_is_allowed_to_edit();
-        $urlBase = api_get_path(WEB_CODE_PATH) .
-            'exercice/hotpotatoes_exercise_report.php?action=delete&' .
-            api_get_cidreq() . '&id=';
+        $urlBase = api_get_path(WEB_CODE_PATH).
+            'exercice/hotpotatoes_exercise_report.php?action=delete&'.
+            api_get_cidreq().'&id=';
         while ($data = Database::fetch_array($res)) {
             $actions = null;
 
             if ($apiIsAllowedToEdit) {
-                $url = $urlBase . $data['id'] . '&path=' . $data['exe_name'];
+                $url = $urlBase.$data['id'].'&path='.$data['exe_name'];
                 $actions = Display::url(
                     Display::return_icon('delete.png', get_lang('Delete')),
                     $url
@@ -1457,7 +1457,7 @@ 
                     GroupManager::get_user_group_name($data['user_id'])
                 ),
                 'exe_date' => $data['exe_date'],
-                'score' => $data['exe_result'] . ' / ' . $data['exe_weighting'],
+                'score' => $data['exe_result'].' / '.$data['exe_weighting'],
                 'actions' => $actions,
             );
         }
@@ -1540,18 +1540,18 @@ 
         $TBL_TRACK_HOTPOTATOES = Database:: get_main_table(TABLE_STATISTIC_TRACK_E_HOTPOTATOES);
         $TBL_TRACK_ATTEMPT_RECORDING = Database:: get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
 
-        $session_id_and = ' AND te.session_id = ' . $sessionId . ' ';
+        $session_id_and = ' AND te.session_id = '.$sessionId.' ';
         $exercise_id = intval($exercise_id);
 
         $exercise_where = '';
         if (!empty($exercise_id)) {
-            $exercise_where .= ' AND te.exe_exo_id = ' . $exercise_id . '  ';
+            $exercise_where .= ' AND te.exe_exo_id = '.$exercise_id.'  ';
         }
 
         $hotpotatoe_where = '';
         if (!empty($_GET['path'])) {
             $hotpotatoe_path = Database::escape_string($_GET['path']);
-            $hotpotatoe_where .= ' AND exe_name = "' . $hotpotatoe_path . '"  ';
+            $hotpotatoe_where .= ' AND exe_name = "'.$hotpotatoe_path.'"  ';
         }
 
         // sql for chamilo-type tests for teacher / tutor view
@@ -1563,7 +1563,7 @@ 
             WHERE
                 c_id = $course_id AND
                 exe_exo_id = $exercise_id AND
-                ttte.session_id = " . $sessionId . "
+                ttte.session_id = ".$sessionId."
         )";
 
         if ($is_allowedToEdit) {
@@ -1586,9 +1586,9 @@ 
                         g.id as group_id
                     FROM $TBL_USER u
                     INNER JOIN $TBL_GROUP_REL_USER gru
-                    ON (gru.user_id = u.user_id AND gru.c_id=" . $course_id . ")
+                    ON (gru.user_id = u.user_id AND gru.c_id=".$course_id.")
                     INNER JOIN $TBL_GROUP g
-                    ON (gru.group_id = g.id AND g.c_id=" . $course_id . ")
+                    ON (gru.group_id = g.id AND g.c_id=".$course_id.")
                 )";
             }
 
@@ -1650,9 +1650,9 @@ 
                     g.id as group_id
                 FROM $TBL_USER u
                 LEFT OUTER JOIN $TBL_GROUP_REL_USER gru
-                ON ( gru.user_id = u.user_id AND gru.c_id=" . $course_id . " )
+                ON ( gru.user_id = u.user_id AND gru.c_id=".$course_id." )
                 LEFT OUTER JOIN $TBL_GROUP g
-                ON (gru.group_id = g.id AND g.c_id = " . $course_id . ")
+                ON (gru.group_id = g.id AND g.c_id = ".$course_id.")
             )";
             }
 
@@ -1665,12 +1665,12 @@ 
             (
                 SELECT u.user_id, firstname, lastname, email, username, ' ' as group_name, '' as group_id, official_code
                 FROM $TBL_USER u
-                WHERE u.status NOT IN(" . api_get_users_status_ignored_in_reports('string') . ")
+                WHERE u.status NOT IN(".api_get_users_status_ignored_in_reports('string').")
             )";
             }
 
             $sqlFromOption = " , $TBL_GROUP_REL_USER AS gru ";
-            $sqlWhereOption = "  AND gru.c_id = " . $course_id ." AND gru.user_id = user.user_id ";
+            $sqlWhereOption = "  AND gru.c_id = ".$course_id." AND gru.user_id = user.user_id ";
             $first_and_last_name = api_is_western_name_order() ? "firstname, lastname" : "lastname, firstname";
 
             if ($get_count) {
@@ -1707,8 +1707,8 @@ 
                 ON (user.user_id = exe_user_id)
                 WHERE
                     te.status != 'incomplete' AND
-                    te.c_id = " . $course_id . " $session_id_and AND
-                    ce.active <>-1 AND ce.c_id = " . $course_id . "
+                    te.c_id = ".$course_id." $session_id_and AND
+                    ce.active <>-1 AND ce.c_id = ".$course_id."
                     $exercise_where
                     $extra_where_conditions
                 ";
@@ -1735,12 +1735,12 @@ 
                     $sqlFromOption
                 WHERE
                     user.user_id=tth.exe_user_id
-                    AND tth.c_id = " . $course_id . "
+                    AND tth.c_id = ".$course_id."
                     $hotpotatoe_where
                     $sqlWhereOption
-                    AND user.status NOT IN(" . api_get_users_status_ignored_in_reports(
+                    AND user.status NOT IN(".api_get_users_status_ignored_in_reports(
                     'string'
-                ) . ")
+                ).")
                 ORDER BY
                     tth.c_id ASC,
                     tth.exe_date DESC";
@@ -1813,12 +1813,12 @@ 
 
                     if ($from_gradebook && ($is_allowedToEdit)) {
                         if (in_array(
-                            $results[$i]['username'] . $results[$i]['firstname'] . $results[$i]['lastname'],
+                            $results[$i]['username'].$results[$i]['firstname'].$results[$i]['lastname'],
                             $users_array_id
                         )) {
                             continue;
                         }
-                        $users_array_id[] = $results[$i]['username'] . $results[$i]['firstname'] . $results[$i]['lastname'];
+                        $users_array_id[] = $results[$i]['username'].$results[$i]['firstname'].$results[$i]['lastname'];
                     }
 
                     $lp_obj = isset($results[$i]['orig_lp_id']) && isset($lp_list[$results[$i]['orig_lp_id']]) ? $lp_list[$results[$i]['orig_lp_id']] : null;
@@ -1827,8 +1827,8 @@ 
                     if ($lp_obj) {
                         $url = api_get_path(
                                 WEB_CODE_PATH
-                            ) . 'newscorm/lp_controller.php?' . api_get_cidreq(
-                            ) . '&action=view&lp_id=' . $results[$i]['orig_lp_id'];
+                            ).'newscorm/lp_controller.php?'.api_get_cidreq(
+                            ).'&action=view&lp_id='.$results[$i]['orig_lp_id'];
                         $lp_name = Display::url(
                             $lp_obj['lp_name'],
                             $url,
@@ -1846,7 +1846,7 @@ 
                         );
 
                         foreach ($group_list as $id) {
-                            $group_name_list .= $clean_group_list[$id] . '<br/>';
+                            $group_name_list .= $clean_group_list[$id].'<br/>';
                         }
                         $results[$i]['group_name'] = $group_name_list;
                     }
@@ -1902,8 +1902,8 @@ 
                                 }
                             }
                             if ($revised) {
-                                $actions .= "<a href='exercise_show.php?" . api_get_cidreq(
-                                    ) . "&action=edit&id=$id'>" .
+                                $actions .= "<a href='exercise_show.php?".api_get_cidreq(
+                                    )."&action=edit&id=$id'>".
                                     Display:: return_icon(
                                         'edit.png',
                                         get_lang('Edit'),
@@ -1912,8 +1912,8 @@ 
                                     );
                                 $actions .= '&nbsp;';
                             } else {
-                                $actions .= "<a href='exercise_show.php?" . api_get_cidreq(
-                                    ) . "&action=qualify&id=$id'>" .
+                                $actions .= "<a href='exercise_show.php?".api_get_cidreq(
+                                    )."&action=qualify&id=$id'>".
                                     Display:: return_icon(
                                         'quiz.gif',
                                         get_lang('Qualify')
@@ -1923,12 +1923,12 @@ 
                             $actions .= "</a>";
 
                             if ($filter == 2) {
-                                $actions .= ' <a href="exercise_history.php?' . api_get_cidreq(
-                                    ) . '&exe_id=' . $id . '">' .
+                                $actions .= ' <a href="exercise_history.php?'.api_get_cidreq(
+                                    ).'&exe_id='.$id.'">'.
                                     Display:: return_icon(
                                         'history.gif',
                                         get_lang('ViewHistoryChange')
-                                    ) . '</a>';
+                                    ).'</a>';
                             }
 
                             //Admin can always delete the attempt
@@ -1940,35 +1940,35 @@ 
                                     date('Y-m-d h:i:s'),
                                     false
                                 );
-                                $actions .= '<a href="http://www.whatsmyip.org/ip-geo-location/?ip=' . $ip . '" target="_blank"><img src="' . api_get_path(
+                                $actions .= '<a href="http://www.whatsmyip.org/ip-geo-location/?ip='.$ip.'" target="_blank"><img src="'.api_get_path(
                                         WEB_CODE_PATH
-                                    ) . 'img/icons/22/info.png" title="' . $ip . '" /></a>';
+                                    ).'img/icons/22/info.png" title="'.$ip.'" /></a>';
 
-                                $delete_link = '<a href="exercise_report.php?' . api_get_cidreq(
-                                    ) . '&filter_by_user=' . intval(
+                                $delete_link = '<a href="exercise_report.php?'.api_get_cidreq(
+                                    ).'&filter_by_user='.intval(
                                         $_GET['filter_by_user']
-                                    ) . '&filter=' . $filter . '&exerciseId=' . $exercise_id . '&delete=delete&did=' . $id . '"
+                                    ).'&filter='.$filter.'&exerciseId='.$exercise_id.'&delete=delete&did='.$id.'"
                                 onclick="javascript:if(!confirm(\'' . sprintf(
                                         get_lang('DeleteAttempt'),
                                         $results[$i]['username'],
                                         $dt
-                                    ) . '\')) return false;">' . Display:: return_icon(
+                                    ).'\')) return false;">'.Display:: return_icon(
                                         'delete.png',
                                         get_lang('Delete')
-                                    ) . '</a>';
+                                    ).'</a>';
                                 $delete_link = utf8_encode($delete_link);
 
                                 if (api_is_drh() && !api_is_platform_admin()) {
                                     $delete_link = null;
                                 }
-                                $actions .= $delete_link . '&nbsp;';
+                                $actions .= $delete_link.'&nbsp;';
                             }
 
                         } else {
                             $attempt_url = api_get_path(
                                     WEB_CODE_PATH
-                                ) . 'exercice/result.php?' . api_get_cidreq(
-                                ) . '&id=' . $results[$i]['exe_id'] . '&id_session=' . $sessionId;
+                                ).'exercice/result.php?'.api_get_cidreq(
+                                ).'&id='.$results[$i]['exe_id'].'&id_session='.$sessionId;
                             $attempt_link = Display::url(
                                 get_lang('Show'),
                                 $attempt_url,
@@ -2025,7 +2025,7 @@ 
                     $hp_result = round(
                             ($hpresults[$i][4] / ($hpresults[$i][5] != 0 ? $hpresults[$i][5] : 1)) * 100,
                             2
-                        ) . '% (' . $hpresults[$i][4] . ' / ' . $hpresults[$i][5] . ')';
+                        ).'% ('.$hpresults[$i][4].' / '.$hpresults[$i][5].')';
                     if ($is_allowedToEdit) {
                         $list_info[] = array(
                             $hpresults[$i][0],
@@ -2098,13 +2098,13 @@ 
 
         $html = null;
         if ($show_percentage) {
-            $parent = '(' . $score . ' / ' . $weight . ')';
-            $html = $percentage . "%  $parent";
+            $parent = '('.$score.' / '.$weight.')';
+            $html = $percentage."%  $parent";
             if ($show_only_percentage) {
-                $html = $percentage . "% ";
+                $html = $percentage."% ";
             }
         } else {
-            $html = $score . ' / ' . $weight;
+            $html = $score.' / '.$weight;
         }
         $html = Display::span($html, array('class' => 'score_exercise'));
 
@@ -2198,7 +2198,7 @@ 
     {
         $return = '-';
         if ($value != '') {
-            $return = float_format($value * 100, 1) . ' %';
+            $return = float_format($value * 100, 1).' %';
         }
         return $return;
     }
@@ -2276,7 +2276,7 @@ 
         }
 
         $needle_where = !empty($search) ? " AND title LIKE '?' " : '';
-        $needle = !empty($search) ? "%" . $search . "%" : '';
+        $needle = !empty($search) ? "%".$search."%" : '';
 
         // Show courses by active status
         $active_sql = '';
@@ -2291,7 +2291,7 @@ 
         if ($search_all_sessions == true) {
             $conditions = array(
                 'where' => array(
-                    $active_sql . ' c_id = ? ' . $needle_where . $time_conditions => array(
+                    $active_sql.' c_id = ? '.$needle_where.$time_conditions => array(
                         $course_id,
                         $needle
                     )
@@ -2302,7 +2302,7 @@ 
             if ($session_id == 0) {
                 $conditions = array(
                     'where' => array(
-                        $active_sql . ' session_id = ? AND c_id = ? ' . $needle_where . $time_conditions => array(
+                        $active_sql.' session_id = ? AND c_id = ? '.$needle_where.$time_conditions => array(
                             $session_id,
                             $course_id,
                             $needle
@@ -2313,7 +2313,7 @@ 
             } else {
                 $conditions = array(
                     'where' => array(
-                        $active_sql . ' (session_id = 0 OR session_id = ? ) AND c_id = ? ' . $needle_where . $time_conditions => array(
+                        $active_sql.' (session_id = 0 OR session_id = ? ) AND c_id = ? '.$needle_where.$time_conditions => array(
                             $session_id,
                             $course_id,
                             $needle
@@ -2492,7 +2492,7 @@ 
 
             if ($return_string) {
                 if (!empty($position) && !empty($my_ranking)) {
-                    $return_value = $position . '/' . count($my_ranking);
+                    $return_value = $position.'/'.count($my_ranking);
                 } else {
                     $return_value = '-';
                 }
@@ -2572,7 +2572,7 @@ 
 
             if ($return_string) {
                 if (!empty($position) && !empty($my_ranking)) {
-                    return $position . '/' . count($my_ranking);
+                    return $position.'/'.count($my_ranking);
                 }
             }
             return $return_value;
@@ -2972,7 +2972,7 @@ 
             $courseCondition = "
             INNER JOIN $courseUser cu
             ON cu.c_id = c.id AND cu.user_id  = exe_user_id";
-            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = " . STUDENT;
+            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = ".STUDENT;
         } else {
             $courseCondition = "
             INNER JOIN $courseUserSession cu
@@ -3047,7 +3047,7 @@ 
             $courseCondition = "
             INNER JOIN $courseUser cu
             ON cu.c_id = c.id AND cu.user_id  = exe_user_id";
-            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = " . STUDENT;
+            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = ".STUDENT;
         } else {
             $courseCondition = "
             INNER JOIN $courseUserSession cu
@@ -3139,7 +3139,7 @@ 
             $courseCondition = "
             INNER JOIN $courseUser cu
             ON cu.c_id = c.id AND cu.user_id  = exe_user_id";
-            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = " . STUDENT;
+            $courseConditionWhere = " AND relation_type <> 2 AND cu.status = ".STUDENT;
         } else {
             $courseCondition = "
             INNER JOIN $courseUserSession cu
@@ -3321,7 +3321,7 @@ 
                 }
             }
             // adds the correct word, followed by ] to close the blank
-            $answer .= ' / <font color="green"><b>' . $real_correct_tags[$i] . '</b></font>]';
+            $answer .= ' / <font color="green"><b>'.$real_correct_tags[$i].'</b></font>]';
             if (isset ($real_text[$i + 1])) {
                 $answer .= $real_text[$i + 1];
             }
@@ -3380,13 +3380,13 @@ 
         // check the default value of option
         $tabSelected = array($in_default => " selected='selected' ");
         $res = "";
-        $res .= "<select name='$in_name' id='$in_name' onchange='" . $in_onchange . "' >";
-        $res .= "<option value='-1'" . $tabSelected["-1"] . ">-- " . get_lang(
+        $res .= "<select name='$in_name' id='$in_name' onchange='".$in_onchange."' >";
+        $res .= "<option value='-1'".$tabSelected["-1"].">-- ".get_lang(
                 'AllGroups'
-            ) . " --</option>";
-        $res .= "<option value='0'" . $tabSelected["0"] . ">- " . get_lang(
+            )." --</option>";
+        $res .= "<option value='0'".$tabSelected["0"].">- ".get_lang(
                 'NotInAGroup'
-            ) . " -</option>";
+            )." -</option>";
         $tabGroups = GroupManager::get_group_list();
         $currentCatId = 0;
         for ($i = 0; $i < count($tabGroups); $i++) {
@@ -3394,10 +3394,10 @@ 
                 $tabGroups[$i]["id"]
             );
             if ($tabCategory["id"] != $currentCatId) {
-                $res .= "<option value='-1' disabled='disabled'>" . $tabCategory["title"] . "</option>";
+                $res .= "<option value='-1' disabled='disabled'>".$tabCategory["title"]."</option>";
                 $currentCatId = $tabCategory["id"];
             }
-            $res .= "<option " . $tabSelected[$tabGroups[$i]["id"]] . "style='margin-left:40px' value='" . $tabGroups[$i]["id"] . "'>" . $tabGroups[$i]["name"] . "</option>";
+            $res .= "<option ".$tabSelected[$tabGroups[$i]["id"]]."style='margin-left:40px' value='".$tabGroups[$i]["id"]."'>".$tabGroups[$i]["name"]."</option>";
         }
         $res .= "</select>";
         return $res;
@@ -3602,14 +3602,14 @@ 
                 if ($show_results) {
                     $comnt = Event::get_comments($exe_id, $questionId);
                     if (!empty($comnt)) {
-                        echo '<b>' . get_lang('Feedback') . '</b>';
-                        echo '<div id="question_feedback">' . $comnt . '</div>';
+                        echo '<b>'.get_lang('Feedback').'</b>';
+                        echo '<div id="question_feedback">'.$comnt.'</div>';
                     }
                 }
 
                 if ($show_results) {
                     $score = array(
-                        'result' => get_lang('Score') . " : " . self::show_score(
+                        'result' => get_lang('Score')." : ".self::show_score(
                                 $my_total_score,
                                 $my_total_weight,
                                 false,
@@ -3683,13 +3683,13 @@ 
         }
 
         if ($show_all_but_expected_answer) {
-            $exercise_content .= "<div class='normal-message'>" . get_lang(
+            $exercise_content .= "<div class='normal-message'>".get_lang(
                     "ExerciseWithFeedbackWithoutCorrectionComment"
-                ) . "</div>";
+                )."</div>";
         }
         // Remove audio auto play from questions on results page - refs BT#7939
         $exercise_content = preg_replace(
-            ['/autoplay[\=\".+\"]+/','/autostart[\=\".+\"]+/'],
+            ['/autoplay[\=\".+\"]+/', '/autostart[\=\".+\"]+/'],
             '',
             $exercise_content
         );
@@ -3783,11 +3783,11 @@ 
                     $ribbon_total_success_or_error = ' ribbon-total-error';
                 }
             }
-            $ribbon .= '<div class="total ' . $ribbon_total_success_or_error . '">';
+            $ribbon .= '<div class="total '.$ribbon_total_success_or_error.'">';
         } else {
             $ribbon .= '<div class="total">';
         }
-        $ribbon .= '<h3>' . get_lang('YourTotalScore') . ":&nbsp;";
+        $ribbon .= '<h3>'.get_lang('YourTotalScore').":&nbsp;";
         $ribbon .= self::show_score($score, $weight, false, true);
         $ribbon .= '</h3>';
         $ribbon .= '</div>';

main/inc/lib/export.lib.inc.php

Unused Use Statements -6 removed lines

@@ -3,14 +3,8 @@
 
 use Ddeboer\DataImport\Writer\ExcelWriter;
 use Ddeboer\DataImport\Writer\CsvWriter;
-use Ddeboer\DataImport\Workflow;
-
-use Ddeboer\DataImport\Reader\CsvReader;
-use Ddeboer\DataImport\Reader\ArrayReader;
-use Ddeboer\DataImport\Writer\ArrayWriter;
 use Chamilo\CoreBundle\Component\Editor\Connector;
 use Chamilo\CoreBundle\Component\Filesystem\Data;
-use ChamiloSession as Session;
 use MediaAlchemyst\Alchemyst;
 use MediaAlchemyst\DriversContainer;
 use Neutron\TemporaryFilesystem\Manager;

Spacing +5 added lines, -5 removed lines

@@ -99,7 +99,7 @@ 
         }
         foreach ($data as $row) {
             $string = implode("</td><td>", $row);
-            $string = '<tr><td>' . $string . '</td></tr>';
+            $string = '<tr><td>'.$string.'</td></tr>';
             if ($encoding != 'utf-8') {
                 $string = api_convert_encoding($string, $encoding, $systemEncoding);
             }
@@ -173,7 +173,7 @@ 
             fwrite($handle, '<'.$wrapper_tagname.'>');
         }
         $s = self::_export_complex_table_xml_helper($data);
-        fwrite($handle,$s);
+        fwrite($handle, $s);
         if (!is_null($wrapper_tagname)) {
             fwrite($handle, '</'.$wrapper_tagname.'>'."\n");
         }
@@ -195,10 +195,10 @@ 
         }
         $string = '';
         foreach ($data as $row) {
-            $string .= "\n".str_repeat("\t",$level).'<'.$row['name'].'>';
+            $string .= "\n".str_repeat("\t", $level).'<'.$row['name'].'>';
             if (is_array($row['value'])) {
-            	$string .= self::_export_complex_table_xml_helper($row['value'],$level+1)."\n";
-                $string .= str_repeat("\t",$level).'</'.$row['name'].'>';
+            	$string .= self::_export_complex_table_xml_helper($row['value'], $level + 1)."\n";
+                $string .= str_repeat("\t", $level).'</'.$row['name'].'>';
             } else {
                 $string .= $row['value'];
                 $string .= '</'.$row['name'].'>';

main/inc/lib/login.lib.php

Unused Use Statements -1 removed lines

@@ -2,7 +2,6 @@
 /* For licensing terms, see /license.txt */
 
 use ChamiloSession as Session;
-
 use Chamilo\UserBundle\Entity\User;
 
 /**

Spacing +39 added lines, -39 removed lines

@@ -37,24 +37,24 @@ 
             if ($by_username) {
                 $secret_word = self::get_secret_word($user['email']);
                 if ($reset) {
-                    $reset_link = $portal_url . "main/auth/lostPassword.php?reset=" . $secret_word . "&id=" . $user['uid'];
+                    $reset_link = $portal_url."main/auth/lostPassword.php?reset=".$secret_word."&id=".$user['uid'];
                 } else {
-                    $reset_link = get_lang('Pass') . " : $user[password]";
+                    $reset_link = get_lang('Pass')." : $user[password]";
                 }
-                $user_account_list = get_lang('YourRegistrationData') . " : \n" . get_lang('UserName') . ' : ' . $user['loginName'] . "\n" . get_lang('ResetLink') . ' : ' . $reset_link . '';
+                $user_account_list = get_lang('YourRegistrationData')." : \n".get_lang('UserName').' : '.$user['loginName']."\n".get_lang('ResetLink').' : '.$reset_link.'';
 
                 if ($user_account_list) {
-                    $user_account_list = "\n-----------------------------------------------\n" . $user_account_list;
+                    $user_account_list = "\n-----------------------------------------------\n".$user_account_list;
                 }
             } else {
                 foreach ($user as $this_user) {
                     $secret_word = self::get_secret_word($this_user['email']);
                     if ($reset) {
-                        $reset_link = $portal_url . "main/auth/lostPassword.php?reset=" . $secret_word . "&id=" . $this_user['uid'];
+                        $reset_link = $portal_url."main/auth/lostPassword.php?reset=".$secret_word."&id=".$this_user['uid'];
                     } else {
-                        $reset_link = get_lang('Pass') . " : $this_user[password]";
+                        $reset_link = get_lang('Pass')." : $this_user[password]";
                     }
-                    $user_account_list[] = get_lang('YourRegistrationData') . " : \n" . get_lang('UserName') . ' : ' . $this_user['loginName'] . "\n" . get_lang('ResetLink') . ' : ' . $reset_link . '';
+                    $user_account_list[] = get_lang('YourRegistrationData')." : \n".get_lang('UserName').' : '.$this_user['loginName']."\n".get_lang('ResetLink').' : '.$reset_link.'';
                 }
                 if ($user_account_list) {
                     $user_account_list = implode("\n-----------------------------------------------\n", $user_account_list);
@@ -64,8 +64,8 @@ 
             if (!$by_username) {
                 $user = $user[0];
             }
-            $reset_link = get_lang('Pass') . " : $user[password]";
-            $user_account_list = get_lang('YourRegistrationData') . " : \n" . get_lang('UserName') . ' : ' . $user['loginName'] . "\n" . $reset_link . '';
+            $reset_link = get_lang('Pass')." : $user[password]";
+            $user_account_list = get_lang('YourRegistrationData')." : \n".get_lang('UserName').' : '.$user['loginName']."\n".$reset_link.'';
         }
         return $user_account_list;
     }
@@ -78,7 +78,7 @@ 
      */
     public static function send_password_to_user($user, $by_username = false)
     {
-        $email_subject = "[" . api_get_setting('siteName') . "] " . get_lang('LoginRequest'); // SUBJECT
+        $email_subject = "[".api_get_setting('siteName')."] ".get_lang('LoginRequest'); // SUBJECT
 
         if ($by_username) { // Show only for lost password
             $user_account_list = self::get_user_account_list($user, false, $by_username); // BODY
@@ -97,7 +97,7 @@ 
             }
         }
 
-        $email_body = get_lang('YourAccountParam') . " " . $portal_url . "\n\n$user_account_list";
+        $email_body = get_lang('YourAccountParam')." ".$portal_url."\n\n$user_account_list";
         // SEND MESSAGE
         $sender_name = api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, PERSON_NAME_EMAIL_ADDRESS);
         $email_admin = api_get_setting('emailAdministrator');
@@ -131,7 +131,7 @@ 
      */
     public static function handle_encrypted_password($user, $by_username = false)
     {
-        $email_subject = "[" . api_get_setting('siteName') . "] " . get_lang('LoginRequest'); // SUBJECT
+        $email_subject = "[".api_get_setting('siteName')."] ".get_lang('LoginRequest'); // SUBJECT
 
         if ($by_username) {
         // Show only for lost password
@@ -141,11 +141,11 @@ 
             $user_account_list = self::get_user_account_list($user, true); // BODY
             $email_to = $user[0]['email'];
         }
-        $email_body = get_lang('DearUser') . " :\n" . get_lang('password_request') . "\n";
-        $email_body .= $user_account_list . "\n-----------------------------------------------\n\n";
+        $email_body = get_lang('DearUser')." :\n".get_lang('password_request')."\n";
+        $email_body .= $user_account_list."\n-----------------------------------------------\n\n";
         $email_body .= get_lang('PasswordEncryptedForSecurity');
 
-        $email_body .= "\n\n" . get_lang('SignatureFormula') . ",\n" . api_get_setting('administratorName') . " " . api_get_setting('administratorSurname') . "\n" . get_lang('PlataformAdmin') . " - " . api_get_setting('siteName');
+        $email_body .= "\n\n".get_lang('SignatureFormula').",\n".api_get_setting('administratorName')." ".api_get_setting('administratorSurname')."\n".get_lang('PlataformAdmin')." - ".api_get_setting('siteName');
 
         $sender_name = api_get_person_name(
             api_get_setting('administratorName'),
@@ -238,7 +238,7 @@ 
                     username AS loginName,
                     password,
                     email
-                FROM " . $tbl_user . "
+                FROM " . $tbl_user."
                 WHERE user_id = $id";
         $result = Database::query($sql);
         $num_rows = Database::num_rows($result);
@@ -291,7 +291,7 @@ 
                         ON user.user_id = a.user_id
                         LEFT JOIN $track_e_login login
                         ON user.user_id  = login.login_user_id
-                        WHERE user.user_id = '" . $_user['user_id'] . "'
+                        WHERE user.user_id = '".$_user['user_id']."'
                         ORDER BY login.login_date DESC LIMIT 1";
 
                 $result = Database::query($sql);
@@ -321,7 +321,7 @@ 
                     Session::write('is_platformAdmin', $is_platformAdmin);
                     Session::write('is_allowedCreateCourse', $is_allowedCreateCourse);
                 } else {
-                    header('location:' . api_get_path(WEB_PATH));
+                    header('location:'.api_get_path(WEB_PATH));
                     //exit("WARNING UNDEFINED UID !! ");
                 }
             } else { // no uid => logout or Anonymous
@@ -368,9 +368,9 @@ 
         global $_course;
         global $_real_cid;
 
-        global $is_courseAdmin;  //course teacher
-        global $is_courseTutor;  //course teacher - some rights
-        global $is_courseCoach;  //course coach
+        global $is_courseAdmin; //course teacher
+        global $is_courseTutor; //course teacher - some rights
+        global $is_courseCoach; //course coach
         global $is_courseMember; //course student
         global $is_sessionAdmin;
         global $is_allowed_in_course;
@@ -427,7 +427,7 @@ 
 
                     if (!empty($_GET['id_session'])) {
                         $_SESSION['id_session'] = intval($_GET['id_session']);
-                        $sql = 'SELECT name FROM ' . $tbl_session . ' WHERE id="' . intval($_SESSION['id_session']) . '"';
+                        $sql = 'SELECT name FROM '.$tbl_session.' WHERE id="'.intval($_SESSION['id_session']).'"';
                         $rs = Database::query($sql);
                         list($_SESSION['session_name']) = Database::fetch_array($rs);
                     } else {
@@ -443,7 +443,7 @@ 
                     }
                 } else {
                     //exit("WARNING UNDEFINED CID !! ");
-                    header('location:' . api_get_path(WEB_PATH));
+                    header('location:'.api_get_path(WEB_PATH));
                 }
             } else {
                 Session::erase('_cid');
@@ -470,7 +470,7 @@ 
         } else {
             // Continue with the previous values
             if (empty($_SESSION['_course']) OR empty($_SESSION['_cid'])) { //no previous values...
-                $_cid = -1;        //set default values that will be caracteristic of being unset
+                $_cid = -1; //set default values that will be caracteristic of being unset
                 $_course = -1;
             } else {
                 $_cid = $_SESSION['_cid'];
@@ -480,7 +480,7 @@ 
                 // Moreover, if we want to track a course with another session it can be usefull
                 if (!empty($_GET['id_session'])) {
                     $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
-                    $sql = 'SELECT name FROM ' . $tbl_session . ' WHERE id="' . intval($_SESSION['id_session']) . '"';
+                    $sql = 'SELECT name FROM '.$tbl_session.' WHERE id="'.intval($_SESSION['id_session']).'"';
                     $rs = Database::query($sql);
                     list($_SESSION['session_name']) = Database::fetch_array($rs);
                     $_SESSION['id_session'] = intval($_GET['id_session']);
@@ -520,9 +520,9 @@ 
                             //But only if the login date is < than now + max_life_time
                             $sql = "SELECT course_access_id FROM $course_tracking_table
                                     WHERE
-                                        user_id     = " . intval($_user ['user_id']) . " AND
+                                        user_id     = ".intval($_user ['user_id'])." AND
                                         c_id = '".api_get_course_int_id()."' AND
-                                        session_id  = " . api_get_session_id() . " AND
+                                        session_id  = " . api_get_session_id()." AND
                                         login_course_date > now() - INTERVAL $session_lifetime SECOND
                                     ORDER BY login_course_date DESC LIMIT 0,1";
                             $result = Database::query($sql);
@@ -532,11 +532,11 @@ 
                                 //We update the course tracking table
                                 $sql = "UPDATE $course_tracking_table
                                         SET logout_course_date = '$time', counter = counter+1
-                                        WHERE course_access_id = " . intval($i_course_access_id) . " AND session_id = " . api_get_session_id();
+                                        WHERE course_access_id = ".intval($i_course_access_id)." AND session_id = ".api_get_session_id();
                                 Database::query($sql);
                             } else {
-                                $sql = "INSERT INTO $course_tracking_table (c_id, user_id, login_course_date, logout_course_date, counter, session_id)" .
-                                        "VALUES('" . api_get_course_int_id() . "', '" . $_user['user_id'] . "', '$time', '$time', '1','" . api_get_session_id() . "')";
+                                $sql = "INSERT INTO $course_tracking_table (c_id, user_id, login_course_date, logout_course_date, counter, session_id)".
+                                        "VALUES('".api_get_course_int_id()."', '".$_user['user_id']."', '$time', '$time', '1','".api_get_session_id()."')";
                                 Database::query($sql);
                             }
                         }
@@ -564,8 +564,8 @@ 
                 $course_user_table = Database::get_main_table(TABLE_MAIN_COURSE_USER);
                 $sql = "SELECT * FROM $course_user_table
                        WHERE
-                        user_id  = '" . $user_id . "' AND
-                        relation_type <> " . COURSE_RELATION_TYPE_RRHH . " AND
+                        user_id  = '".$user_id."' AND
+                        relation_type <> " . COURSE_RELATION_TYPE_RRHH." AND
                         course_code = '$course_id'";
                 $result = Database::query($sql);
 
@@ -585,8 +585,8 @@ 
                             $session_id
                         );
                         if (!$user_is_subscribed) {
-                            $url = api_get_path(WEB_CODE_PATH) . 'course_info/legal.php?course_code=' . $_course['code'] . '&session_id=' . $session_id;
-                            header('Location: ' . $url);
+                            $url = api_get_path(WEB_CODE_PATH).'course_info/legal.php?course_code='.$_course['code'].'&session_id='.$session_id;
+                            header('Location: '.$url);
                             exit;
                         }
                     }
@@ -627,11 +627,11 @@ 
                         } else {
                             //Im a coach or a student?
                             $sql = "SELECT user_id, status
-                                    FROM " . $tbl_session_course_user . "
+                                    FROM " . $tbl_session_course_user."
                                     WHERE
                                         c_id = '$_cid' AND
-                                        user_id = '" . $user_id . "' AND
-                                        session_id = '" . $session_id . "'
+                                        user_id = '".$user_id."' AND
+                                        session_id = '" . $session_id."'
                                     LIMIT 1";
                             $result = Database::query($sql);
 
@@ -777,7 +777,7 @@ 
         if ($reset) { // session data refresh requested
             if ($group_id && $_cid && !empty($_course['real_id'])) { // have keys to search data
                 $group_table = Database::get_course_table(TABLE_GROUP);
-                $sql = "SELECT * FROM $group_table WHERE c_id = " . $_course['real_id'] . " AND id = '$group_id'";
+                $sql = "SELECT * FROM $group_table WHERE c_id = ".$_course['real_id']." AND id = '$group_id'";
                 $result = Database::query($sql);
                 if (Database::num_rows($result) > 0) { // This group has recorded status related to this course
                     $gpData = Database::fetch_array($result);
@@ -830,7 +830,7 @@ 
      */
     public static function get_user_accounts_by_username($username)
     {
-        if (strpos($username,'@')){
+        if (strpos($username, '@')) {
             $username = api_strtolower($username);
             $email = true;
         } else {

main/webservices/access_url.php

Unused Use Statements -3 removed lines

@@ -1,9 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use Chamilo\CoreBundle\Entity\ExtraField as EntityExtraField;
-use Chamilo\UserBundle\Entity\User;
-
 /**
  * @package chamilo.webservices
  */

Spacing +51 added lines, -51 removed lines

@@ -75,7 +75,7 @@ 
     }
 
     if ($debug) {
-        error_log("checkip " . intval($check_ip));
+        error_log("checkip ".intval($check_ip));
     }
 
     if ($check_ip) {
@@ -131,7 +131,7 @@ 
     '',
     'SOAP-ENC:Array',
     array(),
-    array(array('ref'=>'SOAP-ENC:arrayType','wsdl:arrayType' => 'tns:portalItem[]')),'tns:portalItem'
+    array(array('ref'=>'SOAP-ENC:arrayType', 'wsdl:arrayType' => 'tns:portalItem[]')), 'tns:portalItem'
 );
 
 $server->wsdl->addComplexType(
@@ -146,13 +146,13 @@ 
 );
 
 // Register the method to expose
-$server->register('WSGetPortals',                   // method name
-    array('getPortals' => 'tns:getPortals'),    // input parameters
-    array('return' => 'tns:portalList'),                    // output parameters
-    'urn:WSAccessUrl',                               // namespace
-    'urn:WSAccessUrl#WSGetPortals',              // soapaction
-    'rpc',                                              // style
-    'encoded',                                          // use
+$server->register('WSGetPortals', // method name
+    array('getPortals' => 'tns:getPortals'), // input parameters
+    array('return' => 'tns:portalList'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSGetPortals', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service adds a user to portal'               // documentation
 );
 
@@ -193,13 +193,13 @@ 
 );
 
 // Register the method to expose
-$server->register('WSAddUserToPortal',                   // method name
-    array('addUserToPortal' => 'tns:AddUserToPortal'),    // input parameters
-    array('return' => 'xsd:string'),                    // output parameters
-    'urn:WSAccessUrl',                               // namespace
-    'urn:WSAccessUrl#WSAddUserToPortal',              // soapaction
-    'rpc',                                              // style
-    'encoded',                                          // use
+$server->register('WSAddUserToPortal', // method name
+    array('addUserToPortal' => 'tns:AddUserToPortal'), // input parameters
+    array('return' => 'xsd:string'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSAddUserToPortal', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service adds a user to portal'               // documentation
 );
 
@@ -224,13 +224,13 @@ 
 }
 
 // Register the method to expose
-$server->register('WSRemoveUserFromPortal',                      // method name
-    array('removeUserFromPortal' => 'tns:AddUserToPortal'),  // input parameters
-    array('return' => 'xsd:string'),                            // output parameters
-    'urn:WSAccessUrl',                                       // namespace
-    'urn:WSAccessUrl#WSRemoveUserFromPortal',                 // soapaction
-    'rpc',                                                      // style
-    'encoded',                                                  // use
+$server->register('WSRemoveUserFromPortal', // method name
+    array('removeUserFromPortal' => 'tns:AddUserToPortal'), // input parameters
+    array('return' => 'xsd:string'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSRemoveUserFromPortal', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service remove a user from a portal'                  // documentation
 );
 
@@ -267,13 +267,13 @@ 
 );
 
 // Register the method to expose
-$server->register('WSGetPortalListFromUser',                      // method name
-    array('getPortalListFromUser' => 'tns:getPortalListFromUser'),  // input parameters
-    array('return' => 'tns:portalList'),                            // output parameters
-    'urn:WSAccessUrl',                                       // namespace
-    'urn:WSAccessUrl#WSGetPortalListFromUser',                 // soapaction
-    'rpc',                                                      // style
-    'encoded',                                                  // use
+$server->register('WSGetPortalListFromUser', // method name
+    array('getPortalListFromUser' => 'tns:getPortalListFromUser'), // input parameters
+    array('return' => 'tns:portalList'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSGetPortalListFromUser', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service remove a user from a portal'                  // documentation
 );
 
@@ -311,13 +311,13 @@ 
 );
 
 // Register the method to expose
-$server->register('WSGetPortalListFromCourse',                      // method name
-    array('getPortalListFromCourse' => 'tns:getPortalListFromCourse'),  // input parameters
-    array('return' => 'tns:portalList'),                            // output parameters
-    'urn:WSAccessUrl',                                       // namespace
-    'urn:WSAccessUrl#getPortalListFromCourse',                 // soapaction
-    'rpc',                                                      // style
-    'encoded',                                                  // use
+$server->register('WSGetPortalListFromCourse', // method name
+    array('getPortalListFromCourse' => 'tns:getPortalListFromCourse'), // input parameters
+    array('return' => 'tns:portalList'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#getPortalListFromCourse', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service remove a user from a portal'                  // documentation
 );
 
@@ -361,13 +361,13 @@ 
 );
 
 // Register the method to expose
-$server->register('WSAddCourseToPortal',                   // method name
-    array('addCourseToPortal' => 'tns:addCourseToPortal'),    // input parameters
-    array('return' => 'xsd:string'),                    // output parameters
-    'urn:WSAccessUrl',                               // namespace
-    'urn:WSAccessUrl#WSAddCourseToPortal',              // soapaction
-    'rpc',                                              // style
-    'encoded',                                          // use
+$server->register('WSAddCourseToPortal', // method name
+    array('addCourseToPortal' => 'tns:addCourseToPortal'), // input parameters
+    array('return' => 'xsd:string'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSAddCourseToPortal', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service adds a course to portal'               // documentation
 );
 
@@ -394,13 +394,13 @@ 
 }
 
 // Register the method to expose
-$server->register('WSRemoveCourseFromPortal',                      // method name
-    array('removeCourseFromPortal' => 'tns:addCourseToPortal'),  // input parameters
-    array('return' => 'xsd:string'),                            // output parameters
-    'urn:WSAccessUrl',                                       // namespace
-    'urn:WSAccessUrl#WSRemoveCourseFromPortal',                 // soapaction
-    'rpc',                                                      // style
-    'encoded',                                                  // use
+$server->register('WSRemoveCourseFromPortal', // method name
+    array('removeCourseFromPortal' => 'tns:addCourseToPortal'), // input parameters
+    array('return' => 'xsd:string'), // output parameters
+    'urn:WSAccessUrl', // namespace
+    'urn:WSAccessUrl#WSRemoveCourseFromPortal', // soapaction
+    'rpc', // style
+    'encoded', // use
     'This service remove a course from a portal'                  // documentation
 );
 

main/wiki/wiki.inc.php

Unused Use Statements -6 removed lines

@@ -1,14 +1,8 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use Chamilo\CoreBundle\Component\Editor\Connector;
 use Chamilo\CoreBundle\Component\Filesystem\Data;
 use ChamiloSession as Session;
-use MediaAlchemyst\Alchemyst;
-use MediaAlchemyst\DriversContainer;
-use Neutron\TemporaryFilesystem\Manager;
-use Neutron\TemporaryFilesystem\TemporaryFilesystem;
-use Symfony\Component\Filesystem\Filesystem;
 
 /**
  * Class Wiki

Spacing +648 added lines, -648 removed lines

@@ -99,25 +99,25 @@ 
      **/
     public function links_to($input)
     {
-        $input_array = preg_split("/(\[\[|\]\])/",$input,-1, PREG_SPLIT_DELIM_CAPTURE);
+        $input_array = preg_split("/(\[\[|\]\])/", $input, -1, PREG_SPLIT_DELIM_CAPTURE);
         $all_links = array();
 
         foreach ($input_array as $key=>$value) {
-            if (isset($input_array[$key-1]) && $input_array[$key-1] == '[[' &&
-                isset($input_array[$key+1]) && $input_array[$key+1] == ']]'
+            if (isset($input_array[$key - 1]) && $input_array[$key - 1] == '[[' &&
+                isset($input_array[$key + 1]) && $input_array[$key + 1] == ']]'
             ) {
                 if (api_strpos($value, "|") !== false) {
-                    $full_link_array=explode("|", $value);
-                    $link=trim($full_link_array[0]);
-                    $title=trim($full_link_array[1]);
+                    $full_link_array = explode("|", $value);
+                    $link = trim($full_link_array[0]);
+                    $title = trim($full_link_array[1]);
                 } else {
-                    $link=trim($value);
-                    $title=trim($value);
+                    $link = trim($value);
+                    $title = trim($value);
                 }
-                unset($input_array[$key-1]);
-                unset($input_array[$key+1]);
+                unset($input_array[$key - 1]);
+                unset($input_array[$key + 1]);
                 //replace blank spaces by _ within the links. But to remove links at the end add a blank space
-                $all_links[]= Database::escape_string(str_replace(' ','_',$link)).' ';
+                $all_links[] = Database::escape_string(str_replace(' ', '_', $link)).' ';
             }
         }
         $output = implode($all_links);
@@ -131,9 +131,9 @@ 
      **/
     public function detect_external_link($input)
     {
-        $exlink='href=';
-        $exlinkStyle='class="wiki_link_ext" href=';
-        $output=str_replace($exlink, $exlinkStyle, $input);
+        $exlink = 'href=';
+        $exlinkStyle = 'class="wiki_link_ext" href=';
+        $output = str_replace($exlink, $exlinkStyle, $input);
         return $output;
     }
 
@@ -144,7 +144,7 @@ 
     public function detect_anchor_link($input)
     {
         $anchorlink = 'href="#';
-        $anchorlinkStyle='class="wiki_anchor_link" href="#';
+        $anchorlinkStyle = 'class="wiki_anchor_link" href="#';
         $output = str_replace($anchorlink, $anchorlinkStyle, $input);
 
         return $output;
@@ -169,7 +169,7 @@ 
      **/
     public function detect_ftp_link($input)
     {
-        $ftplink='href="ftp';
+        $ftplink = 'href="ftp';
         $ftplinkStyle = 'class="wiki_ftp_link" href="ftp';
         $output = str_replace($ftplink, $ftplinkStyle, $input);
 
@@ -214,21 +214,21 @@ 
     {
         $groupId = api_get_group_id();
         //now doubles brackets
-        $input_array = preg_split("/(\[\[|\]\])/",$input,-1, PREG_SPLIT_DELIM_CAPTURE);
+        $input_array = preg_split("/(\[\[|\]\])/", $input, -1, PREG_SPLIT_DELIM_CAPTURE);
 
         foreach ($input_array as $key => $value) {
             //now doubles brackets
-            if (isset($input_array[$key-1]) && $input_array[$key-1] == '[[' AND
-                $input_array[$key+1] == ']]'
+            if (isset($input_array[$key - 1]) && $input_array[$key - 1] == '[[' AND
+                $input_array[$key + 1] == ']]'
             ) {
                 // now full wikilink
-                if (api_strpos($value, "|") !== false){
-                    $full_link_array=explode("|", $value);
-                    $link=trim(strip_tags($full_link_array[0]));
-                    $title=trim($full_link_array[1]);
+                if (api_strpos($value, "|") !== false) {
+                    $full_link_array = explode("|", $value);
+                    $link = trim(strip_tags($full_link_array[0]));
+                    $title = trim($full_link_array[1]);
                 } else {
-                    $link=trim(strip_tags($value));
-                    $title=trim($value);
+                    $link = trim(strip_tags($value));
+                    $title = trim($value);
                 }
 
                 //if wikilink is homepage
@@ -240,17 +240,17 @@ 
                 }
 
                 // note: checkreflink checks if the link is still free. If it is not used then it returns true, if it is used, then it returns false. Now the title may be different
-                if (self::checktitle(strtolower(str_replace(' ','_',$link)))) {
+                if (self::checktitle(strtolower(str_replace(' ', '_', $link)))) {
                     $link = api_html_entity_decode($link);
-                    $input_array[$key]='<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?'.api_get_cidreq().'&action=addnew&amp;title='.Security::remove_XSS($link).'&group_id='.$groupId.'" class="new_wiki_link">'.$title.'</a>';
+                    $input_array[$key] = '<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?'.api_get_cidreq().'&action=addnew&amp;title='.Security::remove_XSS($link).'&group_id='.$groupId.'" class="new_wiki_link">'.$title.'</a>';
                 } else {
-                    $input_array[$key]='<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?'.api_get_cidreq().'&action=showpage&amp;title='.urlencode(strtolower(str_replace(' ','_',$link))).'&group_id='.$groupId.'" class="wiki_link">'.$title.'</a>';
+                    $input_array[$key] = '<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?'.api_get_cidreq().'&action=showpage&amp;title='.urlencode(strtolower(str_replace(' ', '_', $link))).'&group_id='.$groupId.'" class="wiki_link">'.$title.'</a>';
                 }
-                unset($input_array[$key-1]);
-                unset($input_array[$key+1]);
+                unset($input_array[$key - 1]);
+                unset($input_array[$key + 1]);
             }
         }
-        $output = implode('',$input_array);
+        $output = implode('', $input_array);
         return $output;
     }
 
@@ -292,11 +292,11 @@ 
         // are not made here, but through the interce buttons
 
         // cleaning the variables
-        if (api_get_setting('htmlpurifier_wiki') == 'true'){
+        if (api_get_setting('htmlpurifier_wiki') == 'true') {
             //$purifier = new HTMLPurifier();
             $values['content'] = Security::remove_XSS($values['content']);
         }
-        $version = intval($values['version']) + 1 ;
+        $version = intval($values['version']) + 1;
         $linkTo = self::links_to($values['content']); //and check links content
 
         //cleaning config variables
@@ -319,7 +319,7 @@ 
             $_clean['startdate_assig'] = '0000-00-00 00:00:00';
         }
 
-        if (isset($values['initenddate']) && $values['initenddate']==1) {
+        if (isset($values['initenddate']) && $values['initenddate'] == 1) {
             $_clean['enddate_assig'] = $values['enddate_assig'];
         } else {
             $_clean['enddate_assig'] = '0000-00-00 00:00:00';
@@ -330,7 +330,7 @@ 
         }
 
         if (!empty($values['max_text']) || !empty($values['max_version'])) {
-            $_clean['max_text']	= $values['max_text'];
+            $_clean['max_text'] = $values['max_text'];
             $_clean['max_version'] = $values['max_version'];
         }
 
@@ -379,7 +379,7 @@ 
                 $groupId
             );
 
-            if ($values['page_id']== 0) {
+            if ($values['page_id'] == 0) {
                 $sql = 'UPDATE '.$tbl_wiki.' SET page_id="'.$id.'"
                         WHERE c_id = '.$course_id.' AND iid ="'.$id.'"';
                 Database::query($sql);
@@ -463,7 +463,7 @@ 
         $_course = $this->courseInfo;
         $r_user_id = api_get_user_id();
         $r_dtime = api_get_utc_datetime();
-        $r_version = $r_version+1;
+        $r_version = $r_version + 1;
         $r_comment = get_lang('RestoredFromVersion').': '.$c_version;
         $session_id = api_get_session_id();
         $course_id = api_get_course_int_id();
@@ -568,9 +568,9 @@ 
         // Unlike ordinary pages of pages of assignments.
         // Allow create a ordinary page although there is a assignment with the same name
         if ($_clean['assignment'] == 2 || $_clean['assignment'] == 1) {
-            $page = str_replace(' ','_',$values['title']."_uass".$assig_user_id);
+            $page = str_replace(' ', '_', $values['title']."_uass".$assig_user_id);
         } else {
-            $page = str_replace(' ','_',$values['title']);
+            $page = str_replace(' ', '_', $values['title']);
         }
         $_clean['reflink'] = $page;
         $_clean['title']   = trim($values['title']);
@@ -606,7 +606,7 @@ 
 
         $groupId = api_get_group_id();
 
-        $_clean['linksto'] = self::links_to($_clean['content']);	//check wikilinks
+        $_clean['linksto'] = self::links_to($_clean['content']); //check wikilinks
 
         // cleaning config variables
         $_clean['task'] = isset($values['task']) ? $values['task'] : '';
@@ -722,7 +722,7 @@ 
      */
     public function setForm($form, $row = array())
     {
-        $toolBar = api_is_allowed_to_edit(null,true)
+        $toolBar = api_is_allowed_to_edit(null, true)
             ? array('ToolbarSet' => 'Wiki', 'Width' => '100%', 'Height' => '400')
             : array('ToolbarSet' => 'WikiStudent', 'Width' => '100%', 'Height' => '400', 'UserStatus' => 'student');
 
@@ -733,7 +733,7 @@ 
 
         $form->addElement('select', 'progress', get_lang('Progress'), $progress);
 
-        if ((api_is_allowed_to_edit(false,true) ||
+        if ((api_is_allowed_to_edit(false, true) ||
             api_is_platform_admin()) &&
             isset($row['reflink']) && $row['reflink'] != 'index'
         ) {
@@ -873,13 +873,13 @@ 
         if ($newtitle) {
             $pageMIX = $newtitle; //display the page after it is created
         } else {
-            $pageMIX = $page;//display current page
+            $pageMIX = $page; //display current page
         }
 
         $filter = null;
         if (isset($_GET['view']) && $_GET['view']) {
             $_clean['view'] = Database::escape_string($_GET['view']);
-            $filter =' AND w.id="'.$_clean['view'].'"';
+            $filter = ' AND w.id="'.$_clean['view'].'"';
         }
 
         // First, check page visibility in the first page version
@@ -921,14 +921,14 @@ 
         }
 
         // if both are empty and we are displaying the index page then we display the default text.
-        if ($row['content']=='' && $row['title']=='' && $page=='index') {
+        if ($row['content'] == '' && $row['title'] == '' && $page == 'index') {
             if (api_is_allowed_to_edit(false, true) ||
                 api_is_platform_admin() ||
                 GroupManager::is_user_in_group(api_get_user_id(), api_get_group_id())
             ) {
                 //Table structure for better export to pdf
-                $default_table_for_content_Start='<table align="center" border="0"><tr><td align="center">';
-                $default_table_for_content_End='</td></tr></table>';
+                $default_table_for_content_Start = '<table align="center" border="0"><tr><td align="center">';
+                $default_table_for_content_End = '</td></tr></table>';
                 $content = $default_table_for_content_Start.
                     sprintf(get_lang('DefaultContent'), api_get_path(WEB_IMG_PATH)).
                     $default_table_for_content_End;
@@ -943,23 +943,23 @@ 
 
         //assignment mode: identify page type
         $icon_assignment = null;
-        if ($row['assignment']==1) {
-            $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'),'',ICON_SIZE_SMALL);
-        } elseif($row['assignment']==2) {
-            $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
+        if ($row['assignment'] == 1) {
+            $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'), '', ICON_SIZE_SMALL);
+        } elseif ($row['assignment'] == 2) {
+            $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
         }
 
         //task mode
         $icon_task = null;
         if (!empty($row['task'])) {
-            $icon_task=Display::return_icon('wiki_task.png', get_lang('StandardTask'),'',ICON_SIZE_SMALL);
+            $icon_task = Display::return_icon('wiki_task.png', get_lang('StandardTask'), '', ICON_SIZE_SMALL);
         }
 
         // Show page. Show page to all users if isn't hide page. Mode assignments: if student is the author, can view
         if ($KeyVisibility == "1" ||
             api_is_allowed_to_edit(false, true) ||
             api_is_platform_admin() ||
-            ($row['assignment'] == 2 && $KeyVisibility=="0" && (api_get_user_id() == $row['user_id']))
+            ($row['assignment'] == 2 && $KeyVisibility == "0" && (api_get_user_id() == $row['user_id']))
         ) {
             $actionsLeft = '';
 
@@ -984,13 +984,13 @@ 
             $protect_page = null;
             $lock_unlock_protect = null;
             // page action: protecting (locking) the page
-            if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-                if (self::check_protect_page()==1) {
+            if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+                if (self::check_protect_page() == 1) {
                     $protect_page = Display::return_icon('lock.png', get_lang('PageLockedExtra'), '', ICON_SIZE_MEDIUM);
-                    $lock_unlock_protect='unlock';
+                    $lock_unlock_protect = 'unlock';
                 } else {
                     $protect_page = Display::return_icon('unlock.png', get_lang('PageUnlockedExtra'), '', ICON_SIZE_MEDIUM);
-                    $lock_unlock_protect='lock';
+                    $lock_unlock_protect = 'lock';
                 }
             }
 
@@ -1002,13 +1002,13 @@ 
             $visibility_page = null;
             $lock_unlock_visibility = null;
             //page action: visibility
-            if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+            if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                 if (self::check_visibility_page() == 1) {
-                    $visibility_page = Display::return_icon('visible.png', get_lang('ShowPageExtra'),'', ICON_SIZE_MEDIUM);
+                    $visibility_page = Display::return_icon('visible.png', get_lang('ShowPageExtra'), '', ICON_SIZE_MEDIUM);
                     $lock_unlock_visibility = 'invisible';
 
                 } else {
-                    $visibility_page = Display::return_icon('invisible.png', get_lang('HidePageExtra'),'', ICON_SIZE_MEDIUM);
+                    $visibility_page = Display::return_icon('invisible.png', get_lang('HidePageExtra'), '', ICON_SIZE_MEDIUM);
                     $lock_unlock_visibility = 'visible';
                 }
             }
@@ -1020,11 +1020,11 @@ 
 
             //page action: notification
             if (api_is_allowed_to_session_edit()) {
-                if (self::check_notify_page($page)==1) {
-                    $notify_page = Display::return_icon('messagebox_info.png', get_lang('NotifyByEmail'),'',ICON_SIZE_MEDIUM);
+                if (self::check_notify_page($page) == 1) {
+                    $notify_page = Display::return_icon('messagebox_info.png', get_lang('NotifyByEmail'), '', ICON_SIZE_MEDIUM);
                     $lock_unlock_notify_page = 'unlocknotify';
                 } else {
-                    $notify_page = Display::return_icon('mail.png', get_lang('CancelNotifyByEmail'),'',ICON_SIZE_MEDIUM);
+                    $notify_page = Display::return_icon('mail.png', get_lang('CancelNotifyByEmail'), '', ICON_SIZE_MEDIUM);
                     $lock_unlock_notify_page = 'locknotify';
                 }
             }
@@ -1036,33 +1036,33 @@ 
                 ) {
                     // menu discuss page
                     $actionsRight .= '<a href="index.php?'.api_get_cidreq().'&action=discuss&title='.api_htmlentities(urlencode($page)).'" '.self::is_active_navigation_tab('discuss').'>'.
-                        Display::return_icon('discuss.png',get_lang('DiscussThisPage'),'',ICON_SIZE_MEDIUM).'</a>';
+                        Display::return_icon('discuss.png', get_lang('DiscussThisPage'), '', ICON_SIZE_MEDIUM).'</a>';
                 }
 
                 //menu history
                 $actionsRight .= '<a href="index.php?'.api_get_cidreq().'&action=history&title='.api_htmlentities(urlencode($page)).'" '.self::is_active_navigation_tab('history').'>'.
-                    Display::return_icon('history.png',get_lang('ShowPageHistory'),'',ICON_SIZE_MEDIUM).'</a>';
+                    Display::return_icon('history.png', get_lang('ShowPageHistory'), '', ICON_SIZE_MEDIUM).'</a>';
                 //menu linkspages
                 $actionsRight .= '<a href="index.php?'.api_get_cidreq().'action=links&title='.api_htmlentities(urlencode($page)).'" '.self::is_active_navigation_tab('links').'>'.
-                    Display::return_icon('what_link_here.png',get_lang('LinksPages'),'',ICON_SIZE_MEDIUM).'</a>';
+                    Display::return_icon('what_link_here.png', get_lang('LinksPages'), '', ICON_SIZE_MEDIUM).'</a>';
 
                 //menu delete wikipage
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     $actionsRight .= '<a href="index.php?action=delete&'.api_get_cidreq().'&title='.api_htmlentities(urlencode($page)).'"'.self::is_active_navigation_tab('delete').'>'.
-                        Display::return_icon('delete.png',get_lang('DeleteThisPage'),'',ICON_SIZE_MEDIUM).'</a>';
+                        Display::return_icon('delete.png', get_lang('DeleteThisPage'), '', ICON_SIZE_MEDIUM).'</a>';
                 }
 
                 $actionsRight .= '<a href="index.php?'.api_get_cidreq().'&action=showpage&actionpage='.$lock_unlock_notify_page.'&title='.api_htmlentities(urlencode($page)).'">'.
                     $notify_page.'</a>';
 
                 // Page action: copy last version to doc area
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     $actionsRight .= '<a href="index.php?'.api_get_cidreq().'&action=export2doc&wiki_id='.$row['id'].'">'.
                         Display::return_icon('export_to_documents.png', get_lang('ExportToDocArea'), '', ICON_SIZE_MEDIUM).'</a>';
                 }
 
                 $actionsRight .= '<a href="index.php?'.api_get_cidreq().'&action=export_to_pdf&wiki_id='.$row['id'].'">'.
-                    Display::return_icon('pdf.png',get_lang('ExportToPDF'),'',ICON_SIZE_MEDIUM).'</a>';
+                    Display::return_icon('pdf.png', get_lang('ExportToPDF'), '', ICON_SIZE_MEDIUM).'</a>';
 
                 $unoconv = api_get_configuration_value('unoconv.binaries');
                 if ($unoconv) {
@@ -1118,7 +1118,7 @@ 
                     )
                 );
 
-            $footerWiki = '<div id="wikifooter">'.get_lang('Progress').': '.($row['progress']*10).'%&nbsp;&nbsp;&nbsp;'.get_lang('Rating').': '.$row['score'].'&nbsp;&nbsp;&nbsp;'.get_lang('Words').': '.self::word_count($content).'</div>';
+            $footerWiki = '<div id="wikifooter">'.get_lang('Progress').': '.($row['progress'] * 10).'%&nbsp;&nbsp;&nbsp;'.get_lang('Rating').': '.$row['score'].'&nbsp;&nbsp;&nbsp;'.get_lang('Words').': '.self::word_count($content).'</div>';
 
             echo Display::panel($pageWiki, $pageTitle, $footerWiki);
         } //end filter visibility
@@ -1142,7 +1142,7 @@ 
 
         # strip all html tags
         $wc = strip_tags($document);
-        $wc = html_entity_decode($wc, ENT_NOQUOTES, 'UTF-8');// TODO:test also old html_entity_decode(utf8_encode($wc))
+        $wc = html_entity_decode($wc, ENT_NOQUOTES, 'UTF-8'); // TODO:test also old html_entity_decode(utf8_encode($wc))
 
         # remove 'words' that don't consist of alphanumerical characters or punctuation. And fix accents and some letters
         $pattern = "#[^(\w|\d|\'|\"|\.|\!|\?|;|,|\\|\/|\-|:|\&|@|á|é|í|ó|ú|à|è|ì|ò|ù|ä|ë|ï|ö|ü|Á|É|Í|Ó|Ú|À|È|Ò|Ù|Ä|Ë|Ï|Ö|Ü|â|ê|î|ô|û|Â|Ê|Î|Ô|Û|ñ|Ñ|ç|Ç)]+#";
@@ -1175,15 +1175,15 @@ 
 
         $course_id = api_get_course_int_id();
 
-        $sql='SELECT id FROM '.$tbl_wiki.'
+        $sql = 'SELECT id FROM '.$tbl_wiki.'
               WHERE
                 c_id = '.$course_id.' AND
                 title="'.Database::escape_string($title).'" AND
                 '.$groupfilter.$condition_session.'
               ORDER BY id ASC';
-        $result=Database::query($sql);
-        $cant=Database::num_rows($result);
-        if ($cant>0) {
+        $result = Database::query($sql);
+        $cant = Database::num_rows($result);
+        if ($cant > 0) {
             return true;
         } else {
             return false;
@@ -1265,20 +1265,20 @@ 
         $page = $this->page;
 
         $course_id = api_get_course_int_id();
-        $sql='SELECT * FROM '.$tbl_wiki.'
+        $sql = 'SELECT * FROM '.$tbl_wiki.'
               WHERE
                 c_id = '.$course_id.' AND
                 reflink="'.Database::escape_string($page).'" AND
                 '.$groupfilter.$condition_session.'
               ORDER BY id ASC';
 
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
         $status_editlock = $row['editlock'];
         $id = $row['id'];
 
         ///change status
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
             if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'lock' && $status_editlock == 0) {
                 $status_editlock = 1;
             }
@@ -1290,13 +1290,13 @@ 
                     WHERE c_id = '.$course_id.' AND id="'.$id.'"';
             Database::query($sql);
 
-            $sql='SELECT * FROM '.$tbl_wiki.'
+            $sql = 'SELECT * FROM '.$tbl_wiki.'
                   WHERE
                     c_id = '.$course_id.' AND
                     reflink="'.Database::escape_string($page).'" AND
                     '.$groupfilter.$condition_session.'
                   ORDER BY id ASC';
-            $result=Database::query($sql);
+            $result = Database::query($sql);
             $row = Database::fetch_array($result);
         }
 
@@ -1327,13 +1327,13 @@ 
         $row = Database::fetch_array($result);
         $status_visibility = $row['visibility'];
         //change status
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-            if (isset($_GET['actionpage']) && $_GET['actionpage']=='visible' && $status_visibility==0) {
-                $status_visibility=1;
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'visible' && $status_visibility == 0) {
+                $status_visibility = 1;
 
             }
-            if (isset($_GET['actionpage']) && $_GET['actionpage']=='invisible' && $status_visibility==1) {
-                $status_visibility=0;
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'invisible' && $status_visibility == 1) {
+                $status_visibility = 0;
             }
 
             $sql = 'UPDATE '.$tbl_wiki.' SET visibility="'.Database::escape_string($status_visibility).'"
@@ -1350,12 +1350,12 @@ 
                         reflink="'.Database::escape_string($page).'" AND
                         '.$groupfilter.$condition_session.'
                     ORDER BY id ASC';
-            $result=Database::query($sql);
+            $result = Database::query($sql);
             $row = Database::fetch_array($result);
         }
 
         if (empty($row['id'])) {
-            $row['visibility']= 1;
+            $row['visibility'] = 1;
         }
 
         //show status
@@ -1382,18 +1382,18 @@ 
                     reflink="'.Database::escape_string($page).'" AND
                     '.$groupfilter.$condition_session.'
                 ORDER BY id ASC';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
 
         $status_visibility_disc = $row['visibility_disc'];
 
         //change status
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='showdisc' && $status_visibility_disc==0) {
-                $status_visibility_disc=1;
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'showdisc' && $status_visibility_disc == 0) {
+                $status_visibility_disc = 1;
             }
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='hidedisc' && $status_visibility_disc==1) {
-                $status_visibility_disc=0;
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'hidedisc' && $status_visibility_disc == 1) {
+                $status_visibility_disc = 0;
             }
 
             $sql = 'UPDATE '.$tbl_wiki.' SET visibility_disc="'.Database::escape_string($status_visibility_disc).'"
@@ -1441,14 +1441,14 @@ 
         $result = Database::query($sql);
         $row = Database::fetch_array($result);
 
-        $status_addlock_disc=$row['addlock_disc'];
+        $status_addlock_disc = $row['addlock_disc'];
 
         //change status
         if (api_is_allowed_to_edit() || api_is_platform_admin()) {
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='lockdisc' && $status_addlock_disc==0) {
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'lockdisc' && $status_addlock_disc == 0) {
                 $status_addlock_disc = 1;
             }
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='unlockdisc' && $status_addlock_disc==1) {
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'unlockdisc' && $status_addlock_disc == 1) {
                 $status_addlock_disc = 0;
             }
 
@@ -1470,8 +1470,8 @@ 
                         reflink="'.Database::escape_string($page).'" AND
                         '.$groupfilter.$condition_session.'
                     ORDER BY id ASC';
-            $result=Database::query($sql);
-            $row=Database::fetch_array($result);
+            $result = Database::query($sql);
+            $row = Database::fetch_array($result);
         }
 
         return $row['addlock_disc'];
@@ -1496,17 +1496,17 @@ 
                     reflink="'.Database::escape_string($page).'" AND
                     '.$groupfilter.$condition_session.'
                 ORDER BY id ASC';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
-        $status_ratinglock_disc=$row['ratinglock_disc'];
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
+        $status_ratinglock_disc = $row['ratinglock_disc'];
 
         //change status
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='lockrating' && $status_ratinglock_disc==0) {
-                $status_ratinglock_disc=1;
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'lockrating' && $status_ratinglock_disc == 0) {
+                $status_ratinglock_disc = 1;
             }
-            if (isset($_GET['actionpage']) && $_GET['actionpage'] =='unlockrating' && $status_ratinglock_disc==1) {
-                $status_ratinglock_disc=0;
+            if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'unlockrating' && $status_ratinglock_disc == 1) {
+                $status_ratinglock_disc = 0;
             }
 
             $sql = 'UPDATE '.$tbl_wiki.'
@@ -1522,14 +1522,14 @@ 
             // these three lines remain necessary. They do that by changing the
             // page state is made when you press the button and not have to wait
             // to change his page
-            $sql='SELECT * FROM '.$tbl_wiki.'
+            $sql = 'SELECT * FROM '.$tbl_wiki.'
                   WHERE
                     c_id = '.$course_id.' AND
                     reflink="'.Database::escape_string($page).'" AND
                     '.$groupfilter.$condition_session.'
                   ORDER BY id ASC';
-            $result=Database::query($sql);
-            $row=Database::fetch_array($result);
+            $result = Database::query($sql);
+            $row = Database::fetch_array($result);
         }
 
         return $row['ratinglock_disc'];
@@ -1554,24 +1554,24 @@ 
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND reflink="'.$reflink.'" AND '.$groupfilter.$condition_session.'
                 ORDER BY id ASC';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
         $id = $row['id'];
-        $sql='SELECT * FROM '.$tbl_wiki_mailcue.'
+        $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
               WHERE c_id = '.$course_id.' AND id="'.$id.'" AND user_id="'.api_get_user_id().'" AND type="P"';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
 
         $idm = $row['id'];
 
         if (empty($idm)) {
-            $status_notify=0;
+            $status_notify = 0;
         } else {
-            $status_notify=1;
+            $status_notify = 1;
         }
 
         // Change status
-        if (isset($_GET['actionpage']) && $_GET['actionpage'] =='locknotify' && $status_notify==0) {
+        if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'locknotify' && $status_notify == 0) {
             $sql = "SELECT id FROM $tbl_wiki_mailcue
                     WHERE c_id = $course_id AND id = $id AND user_id = $userId";
             $result = Database::query($sql);
@@ -1580,18 +1580,18 @@ 
                 $exist = true;
             }
             if ($exist == false) {
-                $sql="INSERT INTO ".$tbl_wiki_mailcue." (c_id, id, user_id, type, group_id, session_id) VALUES
+                $sql = "INSERT INTO ".$tbl_wiki_mailcue." (c_id, id, user_id, type, group_id, session_id) VALUES
                 ($course_id, '".$id."','".api_get_user_id()."','P','".$groupId."','".$session_id."')";
                 Database::query($sql);
             }
-            $status_notify=1;
+            $status_notify = 1;
         }
 
-        if (isset($_GET['actionpage']) && $_GET['actionpage'] =='unlocknotify' && $status_notify==1) {
+        if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'unlocknotify' && $status_notify == 1) {
             $sql = 'DELETE FROM '.$tbl_wiki_mailcue.'
                     WHERE id="'.$id.'" AND user_id="'.api_get_user_id().'" AND type="P" AND c_id = '.$course_id;
             Database::query($sql);
-            $status_notify=0;
+            $status_notify = 0;
         }
 
         return $status_notify;
@@ -1617,9 +1617,9 @@ 
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND reflink="'.$reflink.'" AND '.$groupfilter.$condition_session.'
                 ORDER BY id ASC';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
-        $id=$row['id'];
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
+        $id = $row['id'];
         $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                 WHERE c_id = '.$course_id.' AND id="'.$id.'" AND user_id="'.api_get_user_id().'" AND type="D"';
         $result = Database::query($sql);
@@ -1627,23 +1627,23 @@ 
         $idm = $row['id'];
 
         if (empty($idm)) {
-            $status_notify_disc=0;
+            $status_notify_disc = 0;
         } else {
-            $status_notify_disc=1;
+            $status_notify_disc = 1;
         }
 
         //change status
-        if (isset($_GET['actionpage']) && $_GET['actionpage'] =='locknotifydisc' && $status_notify_disc==0) {
-            $sql="INSERT INTO ".$tbl_wiki_mailcue." (c_id, id, user_id, type, group_id, session_id) VALUES
+        if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'locknotifydisc' && $status_notify_disc == 0) {
+            $sql = "INSERT INTO ".$tbl_wiki_mailcue." (c_id, id, user_id, type, group_id, session_id) VALUES
             ($course_id, '".$id."','".api_get_user_id()."','D','".$groupId."','".$session_id."')";
             Database::query($sql);
-            $status_notify_disc=1;
+            $status_notify_disc = 1;
         }
-        if (isset($_GET['actionpage']) && $_GET['actionpage'] =='unlocknotifydisc' && $status_notify_disc==1) {
+        if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'unlocknotifydisc' && $status_notify_disc == 1) {
             $sql = 'DELETE FROM '.$tbl_wiki_mailcue.'
                     WHERE c_id = '.$course_id.' AND id="'.$id.'" AND user_id="'.api_get_user_id().'" AND type="D" AND c_id = '.$course_id;
             Database::query($sql);
-            $status_notify_disc=0;
+            $status_notify_disc = 0;
         }
 
         return $status_notify_disc;
@@ -1658,7 +1658,7 @@ 
         $tbl_wiki_mailcue = $this->tbl_wiki_mailcue;
         $course_id = api_get_course_int_id();
         $groupId = api_get_group_id();
-        $session_id=api_get_session_id();
+        $session_id = api_get_session_id();
 
         $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                 WHERE
@@ -1667,31 +1667,31 @@ 
                     type="F" AND
                     group_id="'.$groupId.'" AND
                     session_id="'.$session_id.'"';
-        $result=Database::query($sql);
-        $row=Database::fetch_array($result);
+        $result = Database::query($sql);
+        $row = Database::fetch_array($result);
 
-        $idm=$row['user_id'];
+        $idm = $row['user_id'];
 
         if (empty($idm)) {
-            $status_notify_all=0;
+            $status_notify_all = 0;
         } else {
-            $status_notify_all=1;
+            $status_notify_all = 1;
         }
 
         //change status
-        if (isset($_GET['actionpage']) && $_GET['actionpage'] =='locknotifyall' && $status_notify_all==0) {
-            $sql="INSERT INTO ".$tbl_wiki_mailcue." (c_id, user_id, type, group_id, session_id) VALUES
+        if (isset($_GET['actionpage']) && $_GET['actionpage'] == 'locknotifyall' && $status_notify_all == 0) {
+            $sql = "INSERT INTO ".$tbl_wiki_mailcue." (c_id, user_id, type, group_id, session_id) VALUES
             ($course_id, '".api_get_user_id()."','F','".$groupId."','".$session_id."')";
             Database::query($sql);
-            $status_notify_all=1;
+            $status_notify_all = 1;
         }
 
         if (isset($_GET['actionpage']) &&
             isset($_GET['actionpage']) &&
-            $_GET['actionpage']  =='unlocknotifyall' &&
+            $_GET['actionpage'] == 'unlocknotifyall' &&
             $status_notify_all == 1
         ) {
-            $sql ='DELETE FROM '.$tbl_wiki_mailcue.'
+            $sql = 'DELETE FROM '.$tbl_wiki_mailcue.'
                    WHERE
                     c_id = '.$course_id.' AND
                     user_id="'.api_get_user_id().'" AND
@@ -1700,7 +1700,7 @@ 
                     session_id="'.$session_id.'" AND
                     c_id = '.$course_id;
             Database::query($sql);
-            $status_notify_all=0;
+            $status_notify_all = 0;
         }
 
         //show status
@@ -1710,7 +1710,7 @@ 
     /**
      * Sends pending e-mails
      */
-    public function check_emailcue($id_or_ref, $type, $lastime='', $lastuser='')
+    public function check_emailcue($id_or_ref, $type, $lastime = '', $lastuser = '')
     {
         $tbl_wiki_mailcue = $this->tbl_wiki_mailcue;
         $tbl_wiki = $this->tbl_wiki;
@@ -1718,14 +1718,14 @@ 
         $groupfilter = $this->groupfilter;
         $_course = $this->courseInfo;
         $groupId = api_get_group_id();
-        $session_id=api_get_session_id();
+        $session_id = api_get_session_id();
         $course_id = api_get_course_int_id();
 
-        $group_properties  = GroupManager :: get_group_properties($groupId);
+        $group_properties = GroupManager :: get_group_properties($groupId);
         $group_name = $group_properties['name'];
         $allow_send_mail = false; //define the variable to below
         $email_assignment = null;
-        if ($type=='P') {
+        if ($type == 'P') {
             //if modifying a wiki page
             //first, current author and time
             //Who is the author?
@@ -1736,22 +1736,22 @@ 
             $year = substr($lastime, 0, 4);
             $month = substr($lastime, 5, 2);
             $day = substr($lastime, 8, 2);
-            $hours=substr($lastime, 11,2);
-            $minutes=substr($lastime, 14,2);
-            $seconds=substr($lastime, 17,2);
-            $email_date_changes=$day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
+            $hours = substr($lastime, 11, 2);
+            $minutes = substr($lastime, 14, 2);
+            $seconds = substr($lastime, 17, 2);
+            $email_date_changes = $day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
 
             //second, extract data from first reg
             $sql = 'SELECT * FROM '.$tbl_wiki.'
                     WHERE  c_id = '.$course_id.' AND reflink="'.$id_or_ref.'" AND '.$groupfilter.$condition_session.'
                     ORDER BY id ASC';
-            $result=Database::query($sql);
-            $row=Database::fetch_array($result);
+            $result = Database::query($sql);
+            $row = Database::fetch_array($result);
 
-            $id=$row['id'];
-            $email_page_name=$row['title'];
-            if ($row['visibility']==1) {
-                $allow_send_mail=true; //if visibility off - notify off
+            $id = $row['id'];
+            $email_page_name = $row['title'];
+            if ($row['visibility'] == 1) {
+                $allow_send_mail = true; //if visibility off - notify off
                 $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                         WHERE
                             c_id = '.$course_id.' AND
@@ -1761,10 +1761,10 @@ 
                             group_id="'.$groupId.'" AND
                             session_id="'.$session_id.'"';
                 //type: P=page, D=discuss, F=full.
-                $result=Database::query($sql);
-                $emailtext=get_lang('EmailWikipageModified').' <strong>'.$email_page_name.'</strong> '.get_lang('Wiki');
+                $result = Database::query($sql);
+                $emailtext = get_lang('EmailWikipageModified').' <strong>'.$email_page_name.'</strong> '.get_lang('Wiki');
             }
-        } elseif ($type=='D') {
+        } elseif ($type == 'D') {
             //if added a post to discuss
 
             //first, current author and time
@@ -1776,25 +1776,25 @@ 
             $year = substr($lastime, 0, 4);
             $month = substr($lastime, 5, 2);
             $day = substr($lastime, 8, 2);
-            $hours=substr($lastime, 11,2);
-            $minutes=substr($lastime, 14,2);
-            $seconds=substr($lastime, 17,2);
-            $email_date_changes=$day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
+            $hours = substr($lastime, 11, 2);
+            $minutes = substr($lastime, 14, 2);
+            $seconds = substr($lastime, 17, 2);
+            $email_date_changes = $day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
 
             //second, extract data from first reg
 
-            $id=$id_or_ref; //$id_or_ref is id from tblwiki
+            $id = $id_or_ref; //$id_or_ref is id from tblwiki
 
             $sql = 'SELECT * FROM '.$tbl_wiki.'
                     WHERE c_id = '.$course_id.' AND id="'.$id.'"
                     ORDER BY id ASC';
 
-            $result=Database::query($sql);
-            $row=Database::fetch_array($result);
+            $result = Database::query($sql);
+            $row = Database::fetch_array($result);
 
-            $email_page_name=$row['title'];
-            if ($row['visibility_disc']==1) {
-                $allow_send_mail=true; //if visibility off - notify off
+            $email_page_name = $row['title'];
+            if ($row['visibility_disc'] == 1) {
+                $allow_send_mail = true; //if visibility off - notify off
                 $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                         WHERE
                             c_id = '.$course_id.' AND
@@ -1805,22 +1805,22 @@ 
                             session_id="'.$session_id.'"';
                 //type: P=page, D=discuss, F=full
                 $result = Database::query($sql);
-                $emailtext=get_lang('EmailWikiPageDiscAdded').' <strong>'.$email_page_name.'</strong> '.get_lang('Wiki');
+                $emailtext = get_lang('EmailWikiPageDiscAdded').' <strong>'.$email_page_name.'</strong> '.get_lang('Wiki');
             }
-        } elseif($type=='A') {
+        } elseif ($type == 'A') {
             //for added pages
-            $id=0; //for tbl_wiki_mailcue
+            $id = 0; //for tbl_wiki_mailcue
             $sql = 'SELECT * FROM '.$tbl_wiki.'
                     WHERE c_id = '.$course_id.'
                     ORDER BY id DESC'; //the added is always the last
 
-            $result=Database::query($sql);
-            $row=Database::fetch_array($result);
-            $email_page_name=$row['title'];
+            $result = Database::query($sql);
+            $row = Database::fetch_array($result);
+            $email_page_name = $row['title'];
 
             //Who is the author?
             $userinfo = api_get_user_info($row['user_id']);
-            $email_user_author= get_lang('AddedBy').': '.$userinfo['complete_name'];
+            $email_user_author = get_lang('AddedBy').': '.$userinfo['complete_name'];
 
             //When ?
             $year = substr($row['dtime'], 0, 4);
@@ -1829,33 +1829,33 @@ 
             $hours = substr($row['dtime'], 11, 2);
             $minutes = substr($row['dtime'], 14, 2);
             $seconds = substr($row['dtime'], 17, 2);
-            $email_date_changes=$day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
-
-            if($row['assignment']==0) {
-                $allow_send_mail=true;
-            } elseif($row['assignment']==1) {
-                $email_assignment=get_lang('AssignmentDescExtra').' ('.get_lang('AssignmentMode').')';
-                $allow_send_mail=true;
-            } elseif($row['assignment']==2) {
-                $allow_send_mail=false; //Mode tasks: avoids notifications to all users about all users
+            $email_date_changes = $day.' '.$month.' '.$year.' '.$hours.":".$minutes.":".$seconds;
+
+            if ($row['assignment'] == 0) {
+                $allow_send_mail = true;
+            } elseif ($row['assignment'] == 1) {
+                $email_assignment = get_lang('AssignmentDescExtra').' ('.get_lang('AssignmentMode').')';
+                $allow_send_mail = true;
+            } elseif ($row['assignment'] == 2) {
+                $allow_send_mail = false; //Mode tasks: avoids notifications to all users about all users
             }
 
             $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                     WHERE c_id = '.$course_id.' AND  id="'.$id.'" AND type="F" AND group_id="'.$groupId.'" AND session_id="'.$session_id.'"';
             //type: P=page, D=discuss, F=full
-            $result=Database::query($sql);
+            $result = Database::query($sql);
 
-            $emailtext = get_lang('EmailWikiPageAdded').' <strong>'.$email_page_name.'</strong> '.get_lang('In').' '. get_lang('Wiki');
-        } elseif ($type=='E') {
-            $id=0;
-            $allow_send_mail=true;
+            $emailtext = get_lang('EmailWikiPageAdded').' <strong>'.$email_page_name.'</strong> '.get_lang('In').' '.get_lang('Wiki');
+        } elseif ($type == 'E') {
+            $id = 0;
+            $allow_send_mail = true;
 
             //Who is the author?
-            $userinfo = api_get_user_info(api_get_user_id());	//current user
+            $userinfo = api_get_user_info(api_get_user_id()); //current user
             $email_user_author = get_lang('DeletedBy').': '.$userinfo['complete_name'];
             //When ?
-            $today = date('r');		//current time
-            $email_date_changes=$today;
+            $today = date('r'); //current time
+            $email_date_changes = $today;
 
             $sql = 'SELECT * FROM '.$tbl_wiki_mailcue.'
                     WHERE
@@ -1869,16 +1869,16 @@ 
         ///make and send email
         if ($allow_send_mail) {
             while ($row = Database::fetch_array($result)) {
-                $userinfo = api_get_user_info($row['user_id']);	//$row['user_id'] obtained from tbl_wiki_mailcue
+                $userinfo = api_get_user_info($row['user_id']); //$row['user_id'] obtained from tbl_wiki_mailcue
                 $name_to = $userinfo['complete_name'];
                 $email_to = $userinfo['email'];
                 $sender_name = api_get_setting('emailAdministrator');
                 $sender_email = api_get_setting('emailAdministrator');
                 $email_subject = get_lang('EmailWikiChanges').' - '.$_course['official_code'];
                 $email_body = get_lang('DearUser').' '.api_get_person_name($userinfo['firstname'], $userinfo['lastname']).',<br /><br />';
-                if($session_id==0){
+                if ($session_id == 0) {
                     $email_body .= $emailtext.' <strong>'.$_course['name'].' - '.$group_name.'</strong><br /><br /><br />';
-                }else{
+                } else {
                     $email_body .= $emailtext.' <strong>'.$_course['name'].' ('.api_get_session_name(api_get_session_id()).') - '.$group_name.'</strong><br /><br /><br />';
                 }
                 $email_body .= $email_user_author.' ('.$email_date_changes.')<br /><br /><br />';
@@ -1956,25 +1956,25 @@ 
             $template);
 
         if (0 != $groupId) {
-            $groupPart = '_group' . $groupId; // and add groupId to put the same document title in different groups
-            $group_properties  = GroupManager :: get_group_properties($groupId);
+            $groupPart = '_group'.$groupId; // and add groupId to put the same document title in different groups
+            $group_properties = GroupManager :: get_group_properties($groupId);
             $groupPath = $group_properties['directory'];
         } else {
             $groupPart = '';
-            $groupPath ='';
+            $groupPath = '';
         }
 
-        $exportDir = api_get_path(SYS_COURSE_PATH).api_get_course_path(). '/document'.$groupPath;
-        $exportFile = api_replace_dangerous_char($wikiTitle) . $groupPart;
+        $exportDir = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/document'.$groupPath;
+        $exportFile = api_replace_dangerous_char($wikiTitle).$groupPart;
         $wikiContents = trim(preg_replace("/\[[\[]?([^\]|]*)[|]?([^|\]]*)\][\]]?/", "$1", $wikiContents));
         //TODO: put link instead of title
 
         $wikiContents = str_replace('{CONTENT}', $wikiContents, $template);
 
         // replace relative path by absolute path for courses, so you can see items into this page wiki (images, mp3, etc..) exported in documents
-        if (api_strpos($wikiContents,'../../courses/') !== false) {
+        if (api_strpos($wikiContents, '../../courses/') !== false) {
             $web_course_path = api_get_path(WEB_COURSE_PATH);
-            $wikiContents = str_replace('../../courses/',$web_course_path,$wikiContents);
+            $wikiContents = str_replace('../../courses/', $web_course_path, $wikiContents);
         }
 
         $i = 1;
@@ -1983,8 +1983,8 @@ 
             $i++;
         }
 
-        $wikiFileName = $exportFile . '_' . $i . '.html';
-        $exportPath = $exportDir . '/' . $wikiFileName;
+        $wikiFileName = $exportFile.'_'.$i.'.html';
+        $exportPath = $exportDir.'/'.$wikiFileName;
 
         file_put_contents($exportPath, $wikiContents);
         $doc_id = add_document(
@@ -2029,14 +2029,14 @@ 
         $content_pdf = api_html_entity_decode($data['content'], ENT_QUOTES, api_get_system_encoding());
 
         //clean wiki links
-        $content_pdf=trim(preg_replace("/\[[\[]?([^\]|]*)[|]?([^|\]]*)\][\]]?/", "$1", $content_pdf));
+        $content_pdf = trim(preg_replace("/\[[\[]?([^\]|]*)[|]?([^|\]]*)\][\]]?/", "$1", $content_pdf));
         //TODO: It should be better to display the link insted of the tile but it is hard for [[title]] links
 
         $title_pdf = api_html_entity_decode($data['title'], ENT_QUOTES, api_get_system_encoding());
         $title_pdf = api_utf8_encode($title_pdf, api_get_system_encoding());
         $content_pdf = api_utf8_encode($content_pdf, api_get_system_encoding());
 
-        $html='
+        $html = '
         <!-- defines the headers/footers - this must occur before the headers/footers are set -->
 
         <!--mpdf
@@ -2091,9 +2091,9 @@ 
         $session_id = $this->session_id;
         $groupId = api_get_group_id();
 
-        if ($groupId==0) {
+        if ($groupId == 0) {
             //extract course members
-            if(!empty($session_id)) {
+            if (!empty($session_id)) {
                 $a_users_to_add = CourseManager::get_user_list_from_course_code(api_get_course_id(), $session_id);
             } else {
                 $a_users_to_add = CourseManager::get_user_list_from_course_code(api_get_course_id(), 0);
@@ -2119,7 +2119,7 @@ 
         $username = api_htmlentities(sprintf(get_lang('LoginX'), $userinfo['username'], ENT_QUOTES));
         $name = $userinfo['complete_name']." - ".$username;
 
-        $photo = '<img src="' . $userinfo['avatar'] . '" alt="' . $name . '"  width="40" height="50" align="top" title="' . $name . '"  />';
+        $photo = '<img src="'.$userinfo['avatar'].'" alt="'.$name.'"  width="40" height="50" align="top" title="'.$name.'"  />';
 
         // teacher assignment title
         $title_orig = $values['title'];
@@ -2147,24 +2147,24 @@ 
                 $userPicture = UserManager::getUserPicture($assig_user_id);
                 $username = api_htmlentities(sprintf(get_lang('LoginX'), $o_user_to_add['username'], ENT_QUOTES));
                 $name = api_get_person_name($o_user_to_add['firstname'], $o_user_to_add['lastname'])." . ".$username;
-                $photo= '<img src="'.$userPicture.'" alt="'.$name.'"  width="40" height="50" align="bottom" title="'.$name.'"  />';
+                $photo = '<img src="'.$userPicture.'" alt="'.$name.'"  width="40" height="50" align="bottom" title="'.$name.'"  />';
 
                 $is_tutor_of_group = GroupManager::is_tutor_of_group($assig_user_id, $groupId); //student is tutor
                 $is_tutor_and_member = GroupManager::is_tutor_of_group($assig_user_id, $groupId) && GroupManager::is_subscribed($assig_user_id, $groupId);
                 // student is tutor and member
 
                 if ($is_tutor_and_member) {
-                    $status_in_group=get_lang('GroupTutorAndMember');
+                    $status_in_group = get_lang('GroupTutorAndMember');
                 } else {
-                    if($is_tutor_of_group) {
-                        $status_in_group=get_lang('GroupTutor');
+                    if ($is_tutor_of_group) {
+                        $status_in_group = get_lang('GroupTutor');
                     } else {
-                        $status_in_group=" "; //get_lang('GroupStandardMember')
+                        $status_in_group = " "; //get_lang('GroupStandardMember')
                     }
                 }
 
-                if ($assignment_type==1) {
-                    $values['title']= $title_orig;
+                if ($assignment_type == 1) {
+                    $values['title'] = $title_orig;
                     $values['content'] = '<div align="center" style="background-color: #F5F8FB; border:solid; border-color: #E6E6E6">
                     <table border="0">
                     <tr><td style="font-size:24px">'.get_lang('AssignmentWork').'</td></tr>
@@ -2180,7 +2180,7 @@ 
                         ).
                         ' [['.$_POST['title']."_uass".$assig_user_id.' | '.$photo.']] '.$status_in_group.'</li>';
                     //don't change this line without guaranteeing that users will be ordered by last names in the following format (surname, name)
-                    $values['assignment']=2;
+                    $values['assignment'] = 2;
                 }
                 $this->assig_user_id = $assig_user_id;
                 self::save_new_wiki($values);
@@ -2189,12 +2189,12 @@ 
 
         foreach ($a_users_to_add as $o_user_to_add) {
             if ($o_user_to_add['user_id'] == $userId) {
-                $assig_user_id=$o_user_to_add['user_id'];
+                $assig_user_id = $o_user_to_add['user_id'];
                 if ($assignment_type == 1) {
-                    $values['title']= $title_orig;
-                    $values['comment']=get_lang('AssignmentDesc');
+                    $values['title'] = $title_orig;
+                    $values['comment'] = get_lang('AssignmentDesc');
                     sort($all_students_pages);
-                    $values['content']=$content_orig_A.$content_orig_B.'<br/>
+                    $values['content'] = $content_orig_A.$content_orig_B.'<br/>
                     <div align="center" style="font-size:18px; background-color: #F5F8FB; border:solid; border-color:#E6E6E6">
                     '.get_lang('AssignmentLinkstoStudentsPage').'
                     </div><br/>
@@ -2202,7 +2202,7 @@ 
                     <ol>'.implode($all_students_pages).'</ol>
                     </div>
                     <br/>';
-                    $values['assignment']=1;
+                    $values['assignment'] = 1;
                 }
                 $this->assig_user_id = $assig_user_id;
                 self::save_new_wiki($values);
@@ -2216,7 +2216,7 @@ 
      * @param   int     Whether to search the contents (1) or just the titles (0)
      * @param int
      */
-    public function display_wiki_search_results($search_term, $search_content=0, $all_vers=0)
+    public function display_wiki_search_results($search_term, $search_content = 0, $all_vers = 0)
     {
         $tbl_wiki = $this->tbl_wiki;
         $condition_session = $this->condition_session;
@@ -2228,9 +2228,9 @@ 
         echo '</legend>';
 
         //only by professors when page is hidden
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-            if ($all_vers=='1') {
-                if ($search_content=='1') {
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+            if ($all_vers == '1') {
+                if ($search_content == '1') {
                     $sql = "SELECT * FROM ".$tbl_wiki."
                             WHERE
                                 c_id = $course_id AND
@@ -2247,7 +2247,7 @@ 
                     //search all pages and all versions
                 }
             } else {
-                if ($search_content=='1') {
+                if ($search_content == '1') {
                     $sql = "SELECT * FROM ".$tbl_wiki." s1
                             WHERE
                                 s1.c_id = $course_id AND
@@ -2298,7 +2298,7 @@ 
                     //search all pages and all versions
                 }
             } else {
-                if($search_content=='1') {
+                if ($search_content == '1') {
                     $sql = "SELECT * FROM ".$tbl_wiki." s1
                             WHERE
                                 s1.c_id = $course_id AND
@@ -2346,17 +2346,17 @@ 
                 $seconds = substr($obj->dtime, 17, 2);
 
                 //get type assignment icon
-                if($obj->assignment==1) {
-                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
                     $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
                 $row = array();
                 $row[] = $ShowAssignment;
 
-                if($all_vers=='1') {
+                if ($all_vers == '1') {
                     $row[] = '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=showpage&title='.api_htmlentities(urlencode($obj->reflink)).'&view='.$obj->id.'&session_id='.api_htmlentities(urlencode($_GET['$session_id'])).'&group_id='.api_htmlentities(urlencode($_GET['group_id'])).'">'.
                         api_htmlentities($obj->title).'</a>';
                 } else {
@@ -2367,21 +2367,21 @@ 
                 $row[] = $obj->user_id != 0 ? UserManager::getUserProfileLink($userinfo) : get_lang('Anonymous').' ('.$obj->user_ip.')';
                 $row[] = $year.'-'.$month.'-'.$day.' '.$hours.":".$minutes.":".$seconds;
 
-                if ($all_vers=='1') {
+                if ($all_vers == '1') {
                     $row[] = $obj->version;
                 } else {
                     $showdelete = '';
-                    if (api_is_allowed_to_edit(false,true)|| api_is_platform_admin()) {
-                        $showdelete=' <a href="'.api_get_self().'?'.api_get_cidreq().'&action=delete&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                            Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_SMALL);
+                    if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+                        $showdelete = ' <a href="'.api_get_self().'?'.api_get_cidreq().'&action=delete&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                            Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL);
                     }
                     $row[] = '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=edit&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('edit.png', get_lang('EditPage'),'',ICON_SIZE_SMALL).'</a>
+                        Display::return_icon('edit.png', get_lang('EditPage'), '', ICON_SIZE_SMALL).'</a>
                         <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=discuss&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('discuss.png', get_lang('Discuss'),'',ICON_SIZE_SMALL).'</a>
+                        Display::return_icon('discuss.png', get_lang('Discuss'), '', ICON_SIZE_SMALL).'</a>
                         <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=history&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('history.png', get_lang('History'),'',ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=links&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('what_link_here.png', get_lang('LinksPages'),'',ICON_SIZE_SMALL).'</a>'.$showdelete;
+                        Display::return_icon('history.png', get_lang('History'), '', ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=links&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                        Display::return_icon('what_link_here.png', get_lang('LinksPages'), '', ICON_SIZE_SMALL).'</a>'.$showdelete;
                 }
                 $rows[] = $row;
             }
@@ -2406,16 +2406,16 @@ 
                     'all_vers' => $all_vers,
                 )
             );
-            $table->set_header(0,get_lang('Type'), true, array ('style' => 'width:30px;'));
-            $table->set_header(1,get_lang('Title'), true);
+            $table->set_header(0, get_lang('Type'), true, array('style' => 'width:30px;'));
+            $table->set_header(1, get_lang('Title'), true);
             if ($all_vers == '1') {
-                $table->set_header(2,get_lang('Author'), true);
-                $table->set_header(3,get_lang('Date'), true);
-                $table->set_header(4,get_lang('Version'), true);
+                $table->set_header(2, get_lang('Author'), true);
+                $table->set_header(3, get_lang('Date'), true);
+                $table->set_header(4, get_lang('Version'), true);
             } else {
-                $table->set_header(2,get_lang('Author').' ('.get_lang('LastVersion').')', true);
-                $table->set_header(3,get_lang('Date').' ('.get_lang('LastVersion').')', true);
-                $table->set_header(4,get_lang('Actions'), false, array ('style' => 'width:130px;'));
+                $table->set_header(2, get_lang('Author').' ('.get_lang('LastVersion').')', true);
+                $table->set_header(3, get_lang('Date').' ('.get_lang('LastVersion').')', true);
+                $table->set_header(4, get_lang('Actions'), false, array('style' => 'width:130px;'));
             }
             $table->display();
         } else {
@@ -2428,14 +2428,14 @@ 
      * @todo replace this function with the formvalidator datepicker
      *
      */
-    public function draw_date_picker($prefix,$default='')
+    public function draw_date_picker($prefix, $default = '')
     {
         if (empty($default)) {
             $default = date('Y-m-d H:i:s');
         }
         $parts = explode(' ', $default);
-        list($d_year,$d_month,$d_day) = explode('-',$parts[0]);
-        list($d_hour,$d_minute) = explode(':',$parts[1]);
+        list($d_year, $d_month, $d_day) = explode('-', $parts[0]);
+        list($d_hour, $d_minute) = explode(':', $parts[1]);
 
         $month_list = array(
             1 => get_lang('JanuaryLong'),
@@ -2452,9 +2452,9 @@ 
             12 => get_lang('DecemberLong'),
         );
 
-        $minute = range(10,59);
-        array_unshift($minute,'00','01','02','03','04','05','06','07','08','09');
-        $date_form = self::make_select($prefix.'_day', array_combine(range(1,31),range(1,31)), $d_day);
+        $minute = range(10, 59);
+        array_unshift($minute, '00', '01', '02', '03', '04', '05', '06', '07', '08', '09');
+        $date_form = self::make_select($prefix.'_day', array_combine(range(1, 31), range(1, 31)), $d_day);
         $date_form .= self::make_select($prefix.'_month', $month_list, $d_month);
         $date_form .= self::make_select(
                 $prefix.'_year',
@@ -2467,7 +2467,7 @@ 
                 ),
                 $d_year
             ).'&nbsp;&nbsp;&nbsp;&nbsp;';
-        $date_form .= self::make_select($prefix.'_hour', array_combine(range(0,23),range(0,23)), $d_hour).' : ';
+        $date_form .= self::make_select($prefix.'_hour', array_combine(range(0, 23), range(0, 23)), $d_hour).' : ';
         $date_form .= self::make_select($prefix.'_minute', $minute, $d_minute);
 
         return $date_form;
@@ -2477,11 +2477,11 @@ 
      * Draws an HTML form select with the given options
      *
      */
-    public function make_select($name,$values,$checked='')
+    public function make_select($name, $values, $checked = '')
     {
         $output = '<select name="'.$name.'" id="'.$name.'">';
-        foreach($values as $key => $value) {
-            $output .= '<option value="'.$key.'" '.(($checked==$key)?'selected="selected"':'').'>'.$value.'</option>';
+        foreach ($values as $key => $value) {
+            $output .= '<option value="'.$key.'" '.(($checked == $key) ? 'selected="selected"' : '').'>'.$value.'</option>';
         }
         $output .= '</select>';
         return $output;
@@ -2505,7 +2505,7 @@ 
      */
     public function two_digits($number)
     {
-        $number = (int)$number;
+        $number = (int) $number;
         return ($number < 10) ? '0'.$number : $number;
     }
 
@@ -2523,7 +2523,7 @@ 
                 WHERE c_id = '.$course_id.' AND id = '.$id.' ';
         $result = Database::query($sql);
         $data = array();
-        while ($row=Database::fetch_array($result,'ASSOC'))   {
+        while ($row = Database::fetch_array($result, 'ASSOC')) {
             $data = $row;
         }
         return $data;
@@ -2577,7 +2577,7 @@ 
         $result = Database::query($sql);
         $data = array();
         if (Database::num_rows($result)) {
-            $data = Database::fetch_array($result,'ASSOC');
+            $data = Database::fetch_array($result, 'ASSOC');
         }
 
         return $data;
@@ -2671,9 +2671,9 @@ 
         $result = self::getAllWiki();
         if (!empty($result)) {
             foreach ($result  as $is_editing_block) {
-                $max_edit_time	= 1200; // 20 minutes
-                $timestamp_edit	= strtotime($is_editing_block['time_edit']);
-                $time_editing	= time()-$timestamp_edit;
+                $max_edit_time = 1200; // 20 minutes
+                $timestamp_edit = strtotime($is_editing_block['time_edit']);
+                $time_editing = time() - $timestamp_edit;
 
                 // First prevent concurrent users and double version
                 if ($is_editing_block['is_editing'] == $userId) {
@@ -2682,7 +2682,7 @@ 
                     unset($_SESSION['_version']);
                 }
                 // Second checks if has exceeded the time that a page may be available or if a page was edited and saved by its author
-                if ($time_editing > $max_edit_time || ($is_editing_block['is_editing'] == $userId && $action!='edit')) {
+                if ($time_editing > $max_edit_time || ($is_editing_block['is_editing'] == $userId && $action != 'edit')) {
                     self::updateWikiIsEditing($is_editing_block['is_editing']);
                 }
             }
@@ -2730,7 +2730,7 @@ 
                 FROM ".$tbl_wiki."
                 WHERE c_id = $course_id AND ".$groupfilter.$condition_session."";
 
-        $allpages=Database::query($sql);
+        $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
             $total_versions = $row['TOTAL_VERS'];
             $total_visits = intval($row['TOTAL_VISITS']);
@@ -2740,30 +2740,30 @@ 
                 WHERE c_id = $course_id AND ".$groupfilter.$condition_session."";
         $allpages = Database::query($sql);
 
-        while ($row=Database::fetch_array($allpages)) {
+        while ($row = Database::fetch_array($allpages)) {
             $total_words = $total_words + self::word_count($row['content']);
-            $total_links 			= $total_links+substr_count($row['content'], "href=");
-            $total_links_anchors 	= $total_links_anchors+substr_count($row['content'], 'href="#');
-            $total_links_mail		= $total_links_mail+substr_count($row['content'], 'href="mailto');
-            $total_links_ftp 		= $total_links_ftp+substr_count($row['content'], 'href="ftp');
-            $total_links_irc		= $total_links_irc+substr_count($row['content'], 'href="irc');
-            $total_links_news 		= $total_links_news+substr_count($row['content'], 'href="news');
-            $total_wlinks 			= $total_wlinks+substr_count($row['content'], "[[");
-            $total_images 			= $total_images+substr_count($row['content'], "<img");
+            $total_links = $total_links + substr_count($row['content'], "href=");
+            $total_links_anchors = $total_links_anchors + substr_count($row['content'], 'href="#');
+            $total_links_mail		= $total_links_mail + substr_count($row['content'], 'href="mailto');
+            $total_links_ftp 		= $total_links_ftp + substr_count($row['content'], 'href="ftp');
+            $total_links_irc = $total_links_irc + substr_count($row['content'], 'href="irc');
+            $total_links_news = $total_links_news + substr_count($row['content'], 'href="news');
+            $total_wlinks 			= $total_wlinks + substr_count($row['content'], "[[");
+            $total_images 			= $total_images + substr_count($row['content'], "<img");
             $clean_total_flash = preg_replace('/player.swf/', ' ', $row['content']);
-            $total_flash			= $total_flash+substr_count($clean_total_flash, '.swf"');
+            $total_flash = $total_flash + substr_count($clean_total_flash, '.swf"');
             //.swf" end quotes prevent insert swf through flvplayer (is not counted)
-            $total_mp3				= $total_mp3+substr_count($row['content'], ".mp3");
-            $total_flv_p = $total_flv_p+substr_count($row['content'], ".flv");
-            $total_flv				=	$total_flv_p/5;
-            $total_youtube			= $total_youtube+substr_count($row['content'], "http://www.youtube.com");
-            $total_multimedia		= $total_multimedia+substr_count($row['content'], "video/x-msvideo");
-            $total_tables			= $total_tables+substr_count($row['content'], "<table");
+            $total_mp3				= $total_mp3 + substr_count($row['content'], ".mp3");
+            $total_flv_p = $total_flv_p + substr_count($row['content'], ".flv");
+            $total_flv				= $total_flv_p / 5;
+            $total_youtube = $total_youtube + substr_count($row['content'], "http://www.youtube.com");
+            $total_multimedia = $total_multimedia + substr_count($row['content'], "video/x-msvideo");
+            $total_tables = $total_tables + substr_count($row['content'], "<table");
         }
 
         //check only last version of all pages (current page)
 
-        $sql =' SELECT *, COUNT(*) AS TOTAL_PAGES, SUM(hits) AS TOTAL_VISITS_LV
+        $sql = ' SELECT *, COUNT(*) AS TOTAL_PAGES, SUM(hits) AS TOTAL_VISITS_LV
                 FROM  '.$tbl_wiki.' s1
                 WHERE s1.c_id = '.$course_id.' AND id=(
                     SELECT MAX(s2.id)
@@ -2774,9 +2774,9 @@ 
                         '.$groupfilter.' AND
                         session_id='.$session_id.')';
         $allpages = Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_pages	 		= $row['TOTAL_PAGES'];
-            $total_visits_lv 		= intval($row['TOTAL_VISITS_LV']);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_pages = $row['TOTAL_PAGES'];
+            $total_visits_lv = intval($row['TOTAL_VISITS_LV']);
         }
 
         $total_words_lv = 0;
@@ -2808,29 +2808,29 @@ 
                 )';
         $allpages = Database::query($sql);
 
-        while ($row=Database::fetch_array($allpages)) {
-            $total_words_lv 		= $total_words_lv+ self::word_count($row['content']);
-            $total_links_lv 		= $total_links_lv+substr_count($row['content'], "href=");
-            $total_links_anchors_lv	= $total_links_anchors_lv+substr_count($row['content'], 'href="#');
-            $total_links_mail_lv 	= $total_links_mail_lv+substr_count($row['content'], 'href="mailto');
-            $total_links_ftp_lv 	= $total_links_ftp_lv+substr_count($row['content'], 'href="ftp');
-            $total_links_irc_lv 	= $total_links_irc_lv+substr_count($row['content'], 'href="irc');
-            $total_links_news_lv 	= $total_links_news_lv+substr_count($row['content'], 'href="news');
-            $total_wlinks_lv 		= $total_wlinks_lv+substr_count($row['content'], "[[");
-            $total_images_lv 		= $total_images_lv+substr_count($row['content'], "<img");
+        while ($row = Database::fetch_array($allpages)) {
+            $total_words_lv 		= $total_words_lv + self::word_count($row['content']);
+            $total_links_lv 		= $total_links_lv + substr_count($row['content'], "href=");
+            $total_links_anchors_lv = $total_links_anchors_lv + substr_count($row['content'], 'href="#');
+            $total_links_mail_lv 	= $total_links_mail_lv + substr_count($row['content'], 'href="mailto');
+            $total_links_ftp_lv 	= $total_links_ftp_lv + substr_count($row['content'], 'href="ftp');
+            $total_links_irc_lv 	= $total_links_irc_lv + substr_count($row['content'], 'href="irc');
+            $total_links_news_lv 	= $total_links_news_lv + substr_count($row['content'], 'href="news');
+            $total_wlinks_lv 		= $total_wlinks_lv + substr_count($row['content'], "[[");
+            $total_images_lv 		= $total_images_lv + substr_count($row['content'], "<img");
             $clean_total_flash_lv = preg_replace('/player.swf/', ' ', $row['content']);
-            $total_flash_lv			= $total_flash_lv+substr_count($clean_total_flash_lv, '.swf"');
+            $total_flash_lv = $total_flash_lv + substr_count($clean_total_flash_lv, '.swf"');
             //.swf" end quotes prevent insert swf through flvplayer (is not counted)
-            $total_mp3_lv			= $total_mp3_lv+substr_count($row['content'], ".mp3");
-            $total_flv_p_lv = $total_flv_p_lv+substr_count($row['content'], ".flv");
-            $total_flv_lv			= $total_flv_p_lv/5;
-            $total_youtube_lv		= $total_youtube_lv+substr_count($row['content'], "http://www.youtube.com");
-            $total_multimedia_lv	= $total_multimedia_lv+substr_count($row['content'], "video/x-msvideo");
-            $total_tables_lv		= $total_tables_lv+substr_count($row['content'], "<table");
+            $total_mp3_lv			= $total_mp3_lv + substr_count($row['content'], ".mp3");
+            $total_flv_p_lv = $total_flv_p_lv + substr_count($row['content'], ".flv");
+            $total_flv_lv			= $total_flv_p_lv / 5;
+            $total_youtube_lv = $total_youtube_lv + substr_count($row['content'], "http://www.youtube.com");
+            $total_multimedia_lv = $total_multimedia_lv + substr_count($row['content'], "video/x-msvideo");
+            $total_tables_lv = $total_tables_lv + substr_count($row['content'], "<table");
         }
 
         //Total pages edited at this time
-        $total_editing_now=0;
+        $total_editing_now = 0;
         $sql = 'SELECT *, COUNT(*) AS TOTAL_EDITING_NOW
                 FROM  '.$tbl_wiki.' s1
                 WHERE is_editing!=0 AND s1.c_id = '.$course_id.' AND
@@ -2845,66 +2845,66 @@ 
         )';
 
         // Can not use group by because the mark is set in the latest version
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_editing_now	= $row['TOTAL_EDITING_NOW'];
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_editing_now = $row['TOTAL_EDITING_NOW'];
         }
 
         // Total hidden pages
-        $total_hidden=0;
+        $total_hidden = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE  c_id = '.$course_id.' AND visibility=0 AND '.$groupfilter.$condition_session.'
                 GROUP BY reflink';
         // or group by page_id. As the mark of hidden places it in all versions of the page, I can use group by to see the first
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_hidden = $total_hidden+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_hidden = $total_hidden + 1;
         }
 
         //Total protect pages
-        $total_protected=0;
+        $total_protected = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE  c_id = '.$course_id.' AND editlock=1 AND '.$groupfilter.$condition_session.'
                 GROUP BY reflink';
         // or group by page_id. As the mark of protected page is the first version of the page, I can use group by
 
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_protected = $total_protected+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_protected = $total_protected + 1;
         }
 
         // Total empty versions.
-        $total_empty_content=0;
+        $total_empty_content = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE
                     c_id = '.$course_id.' AND
                     content="" AND
                     '.$groupfilter.$condition_session.'';
         $allpages = Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_empty_content	= $total_empty_content+1;
+        while ($row = Database::fetch_array($allpages)) {
+            $total_empty_content = $total_empty_content + 1;
         }
 
         //Total empty pages (last version)
 
-        $total_empty_content_lv=0;
+        $total_empty_content_lv = 0;
         $sql = 'SELECT  * FROM  '.$tbl_wiki.' s1
                 WHERE s1.c_id = '.$course_id.' AND content="" AND id=(
                 SELECT MAX(s2.id) FROM '.$tbl_wiki.' s2
                 WHERE s1.c_id = '.$course_id.' AND s1.reflink = s2.reflink AND '.$groupfilter.' AND session_id='.$session_id.')';
-        $allpages=Database::query($sql);
+        $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_empty_content_lv	= $total_empty_content_lv+1;
+            $total_empty_content_lv = $total_empty_content_lv + 1;
         }
 
         // Total locked discuss pages
-        $total_lock_disc=0;
+        $total_lock_disc = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND addlock_disc=0 AND '.$groupfilter.$condition_session.'
                 GROUP BY reflink';//group by because mark lock in all vers, then always is ok
-        $allpages=Database::query($sql);
+        $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_lock_disc	= $total_lock_disc+1;
+            $total_lock_disc = $total_lock_disc + 1;
         }
 
         // Total hidden discuss pages.
@@ -2915,7 +2915,7 @@ 
         //group by because mark lock in all vers, then always is ok
         $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_hidden_disc	= $total_hidden_disc+1;
+            $total_hidden_disc = $total_hidden_disc + 1;
         }
 
         //Total versions with any short comment by user or system
@@ -2923,44 +2923,44 @@ 
         $total_comment_version = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND comment!="" AND '.$groupfilter.$condition_session.'';
-        $allpages=Database::query($sql);
+        $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_comment_version	= $total_comment_version+1;
+            $total_comment_version = $total_comment_version + 1;
         }
 
         // Total pages that can only be scored by teachers.
 
-        $total_only_teachers_rating=0;
+        $total_only_teachers_rating = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND
                 ratinglock_disc = 0 AND
                 '.$groupfilter.$condition_session.'
                 GROUP BY reflink';//group by because mark lock in all vers, then always is ok
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_only_teachers_rating	= $total_only_teachers_rating+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_only_teachers_rating = $total_only_teachers_rating + 1;
         }
 
         // Total pages scored by peers
         // put always this line alfter check num all pages and num pages rated by teachers
-        $total_rating_by_peers=$total_pages-$total_only_teachers_rating;
+        $total_rating_by_peers = $total_pages - $total_only_teachers_rating;
 
         //Total pages identified as standard task
 
-        $total_task=0;
-        $sql='SELECT * FROM '.$tbl_wiki.', '.$tbl_wiki_conf.'
+        $total_task = 0;
+        $sql = 'SELECT * FROM '.$tbl_wiki.', '.$tbl_wiki_conf.'
               WHERE '.$tbl_wiki_conf.'.c_id = '.$course_id.' AND
                '.$tbl_wiki_conf.'.task!="" AND
                '.$tbl_wiki_conf.'.page_id='.$tbl_wiki.'.page_id AND
                 '.$tbl_wiki.'.'.$groupfilter.$condition_session;
         $allpages = Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_task=$total_task+1;
+        while ($row = Database::fetch_array($allpages)) {
+            $total_task = $total_task + 1;
         }
 
         //Total pages identified as teacher page (wiki portfolio mode - individual assignment)
 
-        $total_teacher_assignment=0;
+        $total_teacher_assignment = 0;
         $sql = 'SELECT  * FROM  '.$tbl_wiki.' s1
                 WHERE s1.c_id = '.$course_id.' AND assignment=1 AND id=(
                     SELECT MAX(s2.id)
@@ -2970,20 +2970,20 @@ 
         //mark all versions, but do not use group by reflink because y want the pages not versions
         $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_teacher_assignment=$total_teacher_assignment+1;
+            $total_teacher_assignment = $total_teacher_assignment + 1;
         }
 
         //Total pages identifies as student page (wiki portfolio mode - individual assignment)
 
-        $total_student_assignment=0;
+        $total_student_assignment = 0;
         $sql = 'SELECT  * FROM  '.$tbl_wiki.' s1
                 WHERE s1.c_id = '.$course_id.' AND assignment=2 AND
                 id=(SELECT MAX(s2.id) FROM '.$tbl_wiki.' s2
                 WHERE s2.c_id = '.$course_id.' AND s1.reflink = s2.reflink AND '.$groupfilter.' AND session_id='.$session_id.')';
         //mark all versions, but do not use group by reflink because y want the pages not versions
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_student_assignment = $total_student_assignment+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_student_assignment = $total_student_assignment + 1;
         }
 
         //Current Wiki status add new pages
@@ -2992,36 +2992,36 @@ 
                 GROUP BY addlock';//group by because mark 0 in all vers, then always is ok
         $allpages = Database::query($sql);
         $wiki_add_lock = null;
-        while ($row=Database::fetch_array($allpages)) {
-            $wiki_add_lock=$row['addlock'];
+        while ($row = Database::fetch_array($allpages)) {
+            $wiki_add_lock = $row['addlock'];
         }
 
-        if ($wiki_add_lock==1) {
-            $status_add_new_pag=get_lang('Yes');
+        if ($wiki_add_lock == 1) {
+            $status_add_new_pag = get_lang('Yes');
         } else {
-            $status_add_new_pag=get_lang('No');
+            $status_add_new_pag = get_lang('No');
         }
 
         //Creation date of the oldest wiki page and version
 
-        $first_wiki_date='0000-00-00 00:00:00';
+        $first_wiki_date = '0000-00-00 00:00:00';
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                 ORDER BY dtime ASC LIMIT 1';
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $first_wiki_date=$row['dtime'];
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $first_wiki_date = $row['dtime'];
         }
 
         // Date of publication of the latest wiki version.
 
-        $last_wiki_date='0000-00-00 00:00:00';
+        $last_wiki_date = '0000-00-00 00:00:00';
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                 ORDER BY dtime DESC LIMIT 1';
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $last_wiki_date=$row['dtime'];
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $last_wiki_date = $row['dtime'];
         }
 
         // Average score of all wiki pages. (If a page has not scored zero rated)
@@ -3033,18 +3033,18 @@ 
         // Do not use "count" because using "group by", would give a wrong value
         $allpages = Database::query($sql);
         $total_score = 0;
-        while ($row=Database::fetch_array($allpages)) {
-            $total_score = $total_score+$row['TOTAL_SCORE'];
+        while ($row = Database::fetch_array($allpages)) {
+            $total_score = $total_score + $row['TOTAL_SCORE'];
         }
 
         if (!empty($total_pages)) {
-            $media_score = $total_score/$total_pages;
+            $media_score = $total_score / $total_pages;
             //put always this line alfter check num all pages
         }
 
         // Average user progress in his pages.
 
-        $media_progress=0;
+        $media_progress = 0;
         $sql = 'SELECT  *, SUM(progress) AS TOTAL_PROGRESS
                 FROM  '.$tbl_wiki.' s1
                 WHERE s1.c_id = '.$course_id.' AND id=
@@ -3058,24 +3058,24 @@ 
         // As the value is only the latest version I can not use group by
         $allpages = Database::query($sql);
         while ($row = Database::fetch_array($allpages)) {
-            $total_progress	= $row['TOTAL_PROGRESS'];
+            $total_progress = $row['TOTAL_PROGRESS'];
         }
 
         if (!empty($total_pages)) {
-            $media_progress=$total_progress/$total_pages;
+            $media_progress = $total_progress / $total_pages;
             //put always this line alfter check num all pages
         }
 
         //Total users that have participated in the Wiki
 
-        $total_users=0;
+        $total_users = 0;
         $sql = 'SELECT * FROM '.$tbl_wiki.'
                 WHERE  c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                 GROUP BY user_id';
         //as the mark of user it in all versions of the page, I can use group by to see the first
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_users = $total_users+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_users = $total_users + 1;
         }
 
         // Total of different IP addresses that have participated in the wiki
@@ -3083,9 +3083,9 @@ 
         $sql = 'SELECT * FROM '.$tbl_wiki.'
               WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
               GROUP BY user_ip';
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            $total_ip	= $total_ip+1;
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
+            $total_ip = $total_ip + 1;
         }
 
         echo '<table class="data_table">';
@@ -3284,11 +3284,11 @@ 
                 } else {
                     $row[] = get_lang('Anonymous').' ('.$obj->user_ip.')';
                 }
-                $row[] ='<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=usercontrib&user_id='.urlencode($obj->user_id).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.$obj->NUM_EDIT.'</a>';
+                $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=usercontrib&user_id='.urlencode($obj->user_id).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.$obj->NUM_EDIT.'</a>';
                 $rows[] = $row;
             }
 
-            $table = new SortableTableFromArrayConfig($rows,1,10,'MostActiveUsersA_table','','','DESC');
+            $table = new SortableTableFromArrayConfig($rows, 1, 10, 'MostActiveUsersA_table', '', '', 'DESC');
             $table->set_additional_parameters(
                 array(
                     'cidReq' => Security::remove_XSS($_GET['cidReq']),
@@ -3297,8 +3297,8 @@ 
                     'group_id' => Security::remove_XSS($_GET['group_id'])
                 )
             );
-            $table->set_header(0,get_lang('Author'), true);
-            $table->set_header(1,get_lang('Contributions'), true,array ('style' => 'width:30px;'));
+            $table->set_header(0, get_lang('Author'), true);
+            $table->set_header(1, get_lang('Contributions'), true, array('style' => 'width:30px;'));
             $table->display();
         }
     }
@@ -3314,8 +3314,8 @@ 
         $groupfilter = $this->groupfilter;
         $tbl_wiki_discuss = $this->tbl_wiki_discuss;
 
-        if (api_get_session_id()!=0 &&
-            api_is_allowed_to_session_edit(false,true)==false
+        if (api_get_session_id() != 0 &&
+            api_is_allowed_to_session_edit(false, true) == false
         ) {
             api_not_allowed();
         }
@@ -3378,9 +3378,9 @@ 
         //mode assignment: previous to show  page type
         $icon_assignment = null;
         if ($row['assignment'] == 1) {
-            $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'),'',ICON_SIZE_SMALL);
+            $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'), '', ICON_SIZE_SMALL);
         } elseif ($row['assignment'] == 2) {
-            $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWorkExtra'),'',ICON_SIZE_SMALL);
+            $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWorkExtra'), '', ICON_SIZE_SMALL);
         }
 
         $countWPost = null;
@@ -3391,23 +3391,23 @@ 
             // Show discussion to students if isn't hidden.
             // Show page to all teachers if is hidden.
             // Mode assignments: If is hidden, show pages to student only if student is the author
-            if ($row['visibility_disc']==1 ||
-                api_is_allowed_to_edit(false,true) ||
+            if ($row['visibility_disc'] == 1 ||
+                api_is_allowed_to_edit(false, true) ||
                 api_is_platform_admin() ||
-                ($row['assignment']==2 && $row['visibility_disc']==0 && (api_get_user_id()==$row['user_id']))
+                ($row['assignment'] == 2 && $row['visibility_disc'] == 0 && (api_get_user_id() == $row['user_id']))
             ) {
                 echo '<div id="wikititle">';
 
                 // discussion action: protecting (locking) the discussion
                 $addlock_disc = null;
                 $lock_unlock_disc = null;
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     if (self::check_addlock_discuss() == 1) {
-                        $addlock_disc = Display::return_icon('unlock.png', get_lang('UnlockDiscussExtra'),'',ICON_SIZE_SMALL);
-                        $lock_unlock_disc ='unlockdisc';
+                        $addlock_disc = Display::return_icon('unlock.png', get_lang('UnlockDiscussExtra'), '', ICON_SIZE_SMALL);
+                        $lock_unlock_disc = 'unlockdisc';
                     } else {
-                        $addlock_disc = Display::return_icon('lock.png', get_lang('LockDiscussExtra'),'',ICON_SIZE_SMALL);
-                        $lock_unlock_disc ='lockdisc';
+                        $addlock_disc = Display::return_icon('lock.png', get_lang('LockDiscussExtra'), '', ICON_SIZE_SMALL);
+                        $lock_unlock_disc = 'lockdisc';
                     }
                 }
                 echo '<span style="float:right">';
@@ -3417,13 +3417,13 @@ 
                 // discussion action: visibility.  Show discussion to students if isn't hidden. Show page to all teachers if is hidden.
                 $visibility_disc = null;
                 $hide_show_disc = null;
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
-                    if (self::check_visibility_discuss()==1) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+                    if (self::check_visibility_discuss() == 1) {
                         /// TODO: 	Fix Mode assignments: If is hidden, show discussion to student only if student is the author
-                        $visibility_disc = Display::return_icon('visible.png', get_lang('ShowDiscussExtra'),'',ICON_SIZE_SMALL);
+                        $visibility_disc = Display::return_icon('visible.png', get_lang('ShowDiscussExtra'), '', ICON_SIZE_SMALL);
                         $hide_show_disc = 'hidedisc';
                     } else {
-                        $visibility_disc = Display::return_icon('invisible.png', get_lang('HideDiscussExtra'),'',ICON_SIZE_SMALL);
+                        $visibility_disc = Display::return_icon('invisible.png', get_lang('HideDiscussExtra'), '', ICON_SIZE_SMALL);
                         $hide_show_disc = 'showdisc';
                     }
                 }
@@ -3434,12 +3434,12 @@ 
                 //discussion action: check add rating lock. Show/Hide list to rating for all student
                 $lock_unlock_rating_disc = null;
                 $ratinglock_disc = null;
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     if (self::check_ratinglock_discuss() == 1) {
-                        $ratinglock_disc = Display::return_icon('star.png', get_lang('UnlockRatingDiscussExtra'),'',ICON_SIZE_SMALL);
+                        $ratinglock_disc = Display::return_icon('star.png', get_lang('UnlockRatingDiscussExtra'), '', ICON_SIZE_SMALL);
                         $lock_unlock_rating_disc = 'unlockrating';
                     } else {
-                        $ratinglock_disc = Display::return_icon('star_na.png', get_lang('LockRatingDiscussExtra'),'',ICON_SIZE_SMALL);
+                        $ratinglock_disc = Display::return_icon('star_na.png', get_lang('LockRatingDiscussExtra'), '', ICON_SIZE_SMALL);
                         $lock_unlock_rating_disc = 'lockrating';
                     }
                 }
@@ -3450,11 +3450,11 @@ 
 
                 //discussion action: email notification
                 if (self::check_notify_discuss($page) == 1) {
-                    $notify_disc= Display::return_icon('messagebox_info.png', get_lang('NotifyDiscussByEmail'),'',ICON_SIZE_SMALL);
-                    $lock_unlock_notify_disc='unlocknotifydisc';
+                    $notify_disc = Display::return_icon('messagebox_info.png', get_lang('NotifyDiscussByEmail'), '', ICON_SIZE_SMALL);
+                    $lock_unlock_notify_disc = 'unlocknotifydisc';
                 } else {
-                    $notify_disc= Display::return_icon('mail.png', get_lang('CancelNotifyDiscussByEmail'),'',ICON_SIZE_SMALL);
-                    $lock_unlock_notify_disc='locknotifydisc';
+                    $notify_disc = Display::return_icon('mail.png', get_lang('CancelNotifyDiscussByEmail'), '', ICON_SIZE_SMALL);
+                    $lock_unlock_notify_disc = 'locknotifydisc';
                 }
                 echo '<span style="float:right">';
                 echo '<a href="index.php?action=discuss&amp;actionpage='.$lock_unlock_notify_disc.'&amp;title='.api_htmlentities(urlencode($page)).'">'.$notify_disc.'</a>';
@@ -3466,22 +3466,22 @@ 
 
                 echo '</div>';
 
-                if ($row['addlock_disc']==1 || api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if ($row['addlock_disc'] == 1 || api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     //show comments but students can't add theirs
                     ?>
                     <form name="form1" method="post" action="">
                         <table>
                             <tr>
-                                <td valign="top" ><?php echo get_lang('Comments');?>:</td>
-                                <?php  echo '<input type="hidden" name="wpost_id" value="'.md5(uniqid(rand(), true)).'">';//prevent double post ?>
+                                <td valign="top" ><?php echo get_lang('Comments'); ?>:</td>
+                                <?php  echo '<input type="hidden" name="wpost_id" value="'.md5(uniqid(rand(), true)).'">'; //prevent double post ?>
                                 <td><textarea name="comment" cols="80" rows="5" id="comment"></textarea></td>
                             </tr>
                             <tr>
                                 <?php
                                 //check if rating is allowed
-                                if ($row['ratinglock_disc']==1 || api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                                if ($row['ratinglock_disc'] == 1 || api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                                     ?>
-                                    <td><?php echo get_lang('Rating');?>: </td>
+                                    <td><?php echo get_lang('Rating'); ?>: </td>
                                     <td valign="top"><select name="rating" id="rating">
                                             <option value="-" selected>-</option>
                                             <option value="0">0</option>
@@ -3498,7 +3498,7 @@ 
                                         </select></td>
                                 <?php
                                 } else {
-                                    echo '<input type=hidden name="rating" value="-">';// must pass a default value to avoid rate automatically
+                                    echo '<input type=hidden name="rating" value="-">'; // must pass a default value to avoid rate automatically
                                 }
                                 ?>
                             </tr>
@@ -3538,12 +3538,12 @@ 
                 $sql = "SELECT * FROM $tbl_wiki_discuss
                         WHERE c_id = $course_id AND publication_id='".$id."' AND NOT p_score='-'";
                 $result3 = Database::query($sql);
-                $countWPost_score= Database::num_rows($result3);
+                $countWPost_score = Database::num_rows($result3);
 
-                echo ' - '.get_lang('NumCommentsScore').': '.$countWPost_score;//
+                echo ' - '.get_lang('NumCommentsScore').': '.$countWPost_score; //
 
-                if ($countWPost_score!=0) {
-                    $avg_WPost_score = round($row2['sumWPost'] / $countWPost_score,2).' / 10';
+                if ($countWPost_score != 0) {
+                    $avg_WPost_score = round($row2['sumWPost'] / $countWPost_score, 2).' / 10';
                 } else {
                     $avg_WPost_score = $countWPost_score;
                 }
@@ -3561,16 +3561,16 @@ 
 
                 echo '<hr noshade size="1">';
 
-                while ($row=Database::fetch_array($result)) {
+                while ($row = Database::fetch_array($result)) {
                     $userinfo = api_get_user_info($row['userc_id']);
-                    if (($userinfo['status'])=="5") {
-                        $author_status=get_lang('Student');
+                    if (($userinfo['status']) == "5") {
+                        $author_status = get_lang('Student');
                     } else {
-                        $author_status=get_lang('Teacher');
+                        $author_status = get_lang('Teacher');
                     }
 
                     $name = $userinfo['complete_name'];
-                    $author_photo= '<img src="'.$userinfo['avatar'].'" alt="'.api_htmlentities($name).'"  width="40" height="50" align="top"  title="'.api_htmlentities($name).'"  />';
+                    $author_photo = '<img src="'.$userinfo['avatar'].'" alt="'.api_htmlentities($name).'"  width="40" height="50" align="top"  title="'.api_htmlentities($name).'"  />';
 
                     //stars
                     $p_score = $row['p_score'];
@@ -3649,7 +3649,7 @@ 
         }
         echo '</div>';
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) { //only by professors if page is hidden
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) { //only by professors if page is hidden
             $sql = 'SELECT  *
                     FROM  '.$tbl_wiki.' s1
         		    WHERE s1.c_id = '.$course_id.' AND id=(
@@ -3675,26 +3675,26 @@ 
                 $username = api_htmlentities(sprintf(get_lang('LoginX'), $userinfo['username']), ENT_QUOTES);
 
                 //get type assignment icon
-                if ($obj->assignment==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
                     $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
 
                 //get icon task
                 if (!empty($obj->task)) {
-                    $icon_task=Display::return_icon('wiki_task.png', get_lang('StandardTask'),'',ICON_SIZE_SMALL);
+                    $icon_task = Display::return_icon('wiki_task.png', get_lang('StandardTask'), '', ICON_SIZE_SMALL);
                 } else {
-                    $icon_task= Display::return_icon('px_transparent.gif');
+                    $icon_task = Display::return_icon('px_transparent.gif');
                 }
 
                 $row = array();
                 $row[] = $ShowAssignment.$icon_task;
                 $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=showpage&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">
                 '.api_htmlentities($obj->title).'</a>';
-                if ($obj->user_id <>0) {
+                if ($obj->user_id <> 0) {
                     $row[] = UserManager::getUserProfileLink($userinfo);
                 }
                 else {
@@ -3702,29 +3702,29 @@ 
                 }
                 $row[] = api_get_local_time($obj->dtime, null, date_default_timezone_get());
                 $showdelete = '';
-                if (api_is_allowed_to_edit(false,true)|| api_is_platform_admin()) {
-                    $showdelete =' <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=delete&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_SMALL);
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
+                    $showdelete = ' <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=delete&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                        Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL);
                 }
-                if (api_is_allowed_to_session_edit(false,true) ) {
+                if (api_is_allowed_to_session_edit(false, true)) {
                     $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=edit&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('edit.png', get_lang('EditPage'),'',ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=discuss&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('discuss.png', get_lang('Discuss'),'',ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=history&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('history.png', get_lang('History'),'',ICON_SIZE_SMALL).'</a>
+                        Display::return_icon('edit.png', get_lang('EditPage'), '', ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=discuss&title='.api_htmlentities(urlencode($obj->reflink)).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                        Display::return_icon('discuss.png', get_lang('Discuss'), '', ICON_SIZE_SMALL).'</a> <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=history&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                        Display::return_icon('history.png', get_lang('History'), '', ICON_SIZE_SMALL).'</a>
                         <a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=links&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                        Display::return_icon('what_link_here.png', get_lang('LinksPages'),'',ICON_SIZE_SMALL).'</a>'.$showdelete;
+                        Display::return_icon('what_link_here.png', get_lang('LinksPages'), '', ICON_SIZE_SMALL).'</a>'.$showdelete;
                 }
                 $rows[] = $row;
             }
 
-            $table = new SortableTableFromArrayConfig($rows,1,10,'AllPages_table','','','ASC');
-            $table->set_additional_parameters(array('cidReq' =>Security::remove_XSS($_GET['cidReq']),'action'=>Security::remove_XSS($action),'group_id'=>Security::remove_XSS($_GET['group_id'])));
-            $table->set_header(0,get_lang('Type'), true, array ('style' => 'width:30px;'));
-            $table->set_header(1,get_lang('Title'), true);
-            $table->set_header(2,get_lang('Author').' ('.get_lang('LastVersion').')', true);
-            $table->set_header(3,get_lang('Date').' ('.get_lang('LastVersion').')', true);
-            if (api_is_allowed_to_session_edit(false,true) ) {
-                $table->set_header(4,get_lang('Actions'), true, array ('style' => 'width:130px;'));
+            $table = new SortableTableFromArrayConfig($rows, 1, 10, 'AllPages_table', '', '', 'ASC');
+            $table->set_additional_parameters(array('cidReq' =>Security::remove_XSS($_GET['cidReq']), 'action'=>Security::remove_XSS($action), 'group_id'=>Security::remove_XSS($_GET['group_id'])));
+            $table->set_header(0, get_lang('Type'), true, array('style' => 'width:30px;'));
+            $table->set_header(1, get_lang('Title'), true);
+            $table->set_header(2, get_lang('Author').' ('.get_lang('LastVersion').')', true);
+            $table->set_header(3, get_lang('Date').' ('.get_lang('LastVersion').')', true);
+            if (api_is_allowed_to_session_edit(false, true)) {
+                $table->set_header(4, get_lang('Actions'), true, array('style' => 'width:130px;'));
             }
             $table->display();
         }
@@ -3744,13 +3744,13 @@ 
         $groupfilter = $this->groupfilter;
         $tbl_wiki_conf = $this->tbl_wiki_conf;
 
-        if (api_is_allowed_to_session_edit(false,true) ) {
-            if (self::check_notify_all()==1) {
-                $notify_all= Display::return_icon('messagebox_info.png', get_lang('NotifyByEmail'),'',ICON_SIZE_SMALL).' '.get_lang('NotNotifyChanges');
-                $lock_unlock_notify_all='unlocknotifyall';
+        if (api_is_allowed_to_session_edit(false, true)) {
+            if (self::check_notify_all() == 1) {
+                $notify_all = Display::return_icon('messagebox_info.png', get_lang('NotifyByEmail'), '', ICON_SIZE_SMALL).' '.get_lang('NotNotifyChanges');
+                $lock_unlock_notify_all = 'unlocknotifyall';
             } else {
-                $notify_all=Display::return_icon('mail.png', get_lang('CancelNotifyByEmail'),'',ICON_SIZE_SMALL).' '.get_lang('NotifyChanges');
-                $lock_unlock_notify_all='locknotifyall';
+                $notify_all = Display::return_icon('mail.png', get_lang('CancelNotifyByEmail'), '', ICON_SIZE_SMALL).' '.get_lang('NotifyChanges');
+                $lock_unlock_notify_all = 'locknotifyall';
             }
         }
 
@@ -3758,7 +3758,7 @@ 
         echo '<a href="index.php?action=recentchanges&amp;actionpage='.$lock_unlock_notify_all.'&amp;title='.api_htmlentities(urlencode($page)).'">'.$notify_all.'</a>';
         echo '</span>'.get_lang('RecentChanges').'</div>';
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) { //only by professors if page is hidden
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) { //only by professors if page is hidden
             $sql = 'SELECT * FROM '.$tbl_wiki.', '.$tbl_wiki_conf.'
         		WHERE 	'.$tbl_wiki_conf.'.c_id= '.$course_id.' AND
         				'.$tbl_wiki.'.c_id= '.$course_id.' AND
@@ -3786,19 +3786,19 @@ 
                 $userinfo = api_get_user_info($obj->user_id);
 
                 //get type assignment icon
-                if ($obj->assignment==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
-                    $ShowAssignment=Display::return_icon('px_transparent.gif');
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
+                    $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
 
                 // Get icon task
                 if (!empty($obj->task)) {
-                    $icon_task=Display::return_icon('wiki_task.png', get_lang('StandardTask'),'',ICON_SIZE_SMALL);
+                    $icon_task = Display::return_icon('wiki_task.png', get_lang('StandardTask'), '', ICON_SIZE_SMALL);
                 } else {
-                    $icon_task=Display::return_icon('px_transparent.gif');
+                    $icon_task = Display::return_icon('px_transparent.gif');
                 }
 
                 $row = array();
@@ -3806,8 +3806,8 @@ 
                 $row[] = $ShowAssignment.$icon_task;
                 $row[] = '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=showpage&title='.api_htmlentities(urlencode($obj->reflink)).'&amp;view='.$obj->id.'&session_id='.api_get_session_id().'&group_id='.api_get_group_id().'">'.
                     api_htmlentities($obj->title).'</a>';
-                $row[] = $obj->version>1 ? get_lang('EditedBy') : get_lang('AddedBy');
-                if ($obj->user_id <> 0 ) {
+                $row[] = $obj->version > 1 ? get_lang('EditedBy') : get_lang('AddedBy');
+                if ($obj->user_id <> 0) {
                     $row[] = UserManager::getUserProfileLink($userinfo);
                 } else {
                     $row[] = get_lang('Anonymous').' ('.api_htmlentities($obj->user_ip).')';
@@ -3815,7 +3815,7 @@ 
                 $rows[] = $row;
             }
 
-            $table = new SortableTableFromArrayConfig($rows,0,10,'RecentPages_table','','','DESC');
+            $table = new SortableTableFromArrayConfig($rows, 0, 10, 'RecentPages_table', '', '', 'DESC');
             $table->set_additional_parameters(
                 array(
                     'cidReq' =>api_get_course_id(),
@@ -3824,11 +3824,11 @@ 
                     'group_id' => api_get_group_id()
                 )
             );
-            $table->set_header(0,get_lang('Date'), true, array ('style' => 'width:200px;'));
-            $table->set_header(1,get_lang('Type'), true, array ('style' => 'width:30px;'));
-            $table->set_header(2,get_lang('Title'), true);
-            $table->set_header(3,get_lang('Actions'), true, array ('style' => 'width:80px;'));
-            $table->set_header(4,get_lang('Author'), true);
+            $table->set_header(0, get_lang('Date'), true, array('style' => 'width:200px;'));
+            $table->set_header(1, get_lang('Type'), true, array('style' => 'width:30px;'));
+            $table->set_header(2, get_lang('Title'), true);
+            $table->set_header(3, get_lang('Actions'), true, array('style' => 'width:80px;'));
+            $table->set_header(4, get_lang('Author'), true);
             $table->display();
         }
     }
@@ -3860,17 +3860,17 @@ 
 
             //get type assignment icon
             $ShowAssignment = '';
-            if ($row['assignment']==1) {
-                $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-            } elseif ($row['assignment']==2) {
-                $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-            } elseif ($row['assignment']==0) {
-                $ShowAssignment=Display::return_icon('px_transparent.gif');
+            if ($row['assignment'] == 1) {
+                $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+            } elseif ($row['assignment'] == 2) {
+                $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+            } elseif ($row['assignment'] == 0) {
+                $ShowAssignment = Display::return_icon('px_transparent.gif');
             }
 
             //fix Title to reflink (link Main Page)
-            if ($page==get_lang('DefaultTitle')) {
-                $page='index';
+            if ($page == get_lang('DefaultTitle')) {
+                $page = 'index';
             }
 
             echo '<div id="wikititle">';
@@ -3881,11 +3881,11 @@ 
             //fix index to title Main page into linksto
 
             if ($page == 'index') {
-                $page = str_replace(' ','_',get_lang('DefaultTitle'));
+                $page = str_replace(' ', '_', get_lang('DefaultTitle'));
             }
 
             //table
-            if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+            if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                 //only by professors if page is hidden
                 $sql = "SELECT * FROM ".$tbl_wiki." s1
                         WHERE s1.c_id = $course_id AND linksto LIKE '%".Database::escape_string($page)."%' AND id=(
@@ -3912,25 +3912,25 @@ 
                     //get time
                     $year 	 = substr($obj->dtime, 0, 4);
                     $month	 = substr($obj->dtime, 5, 2);
-                    $day 	 = substr($obj->dtime, 8, 2);
-                    $hours   = substr($obj->dtime, 11,2);
-                    $minutes = substr($obj->dtime, 14,2);
-                    $seconds = substr($obj->dtime, 17,2);
+                    $day = substr($obj->dtime, 8, 2);
+                    $hours   = substr($obj->dtime, 11, 2);
+                    $minutes = substr($obj->dtime, 14, 2);
+                    $seconds = substr($obj->dtime, 17, 2);
 
                     //get type assignment icon
-                    if ($obj->assignment==1) {
-                        $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                    } elseif ($obj->assignment==2) {
-                        $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                    } elseif ($obj->assignment==0) {
-                        $ShowAssignment=Display::return_icon('px_transparent.gif');
+                    if ($obj->assignment == 1) {
+                        $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                    } elseif ($obj->assignment == 2) {
+                        $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                    } elseif ($obj->assignment == 0) {
+                        $ShowAssignment = Display::return_icon('px_transparent.gif');
                     }
 
                     $row = array();
-                    $row[] =$ShowAssignment;
+                    $row[] = $ShowAssignment;
                     $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=showpage&title='.api_htmlentities(urlencode($obj->reflink)).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
                         api_htmlentities($obj->title).'</a>';
-                    if ($obj->user_id <>0) {
+                    if ($obj->user_id <> 0) {
                         $row[] = UserManager::getUserProfileLink($userinfo);
                     }
                     else {
@@ -4039,7 +4039,7 @@ 
             '&session_id='.$this->session_id.'&group_id='.$this->group_id.'">
             </a></div>';
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
             //only by professors if page is hidden
             $sql = 'SELECT * FROM '.$tbl_wiki.'
                     WHERE
@@ -4064,19 +4064,19 @@ 
                 // Get time
                 $year 	 = substr($obj->dtime, 0, 4);
                 $month	 = substr($obj->dtime, 5, 2);
-                $day 	 = substr($obj->dtime, 8, 2);
-                $hours   = substr($obj->dtime, 11,2);
-                $minutes = substr($obj->dtime, 14,2);
-                $seconds = substr($obj->dtime, 17,2);
+                $day = substr($obj->dtime, 8, 2);
+                $hours   = substr($obj->dtime, 11, 2);
+                $minutes = substr($obj->dtime, 14, 2);
+                $seconds = substr($obj->dtime, 17, 2);
 
                 //get type assignment icon
                 $ShowAssignment = '';
-                if ($obj->assignment==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
-                    $ShowAssignment= Display::return_icon('px_transparent.gif');
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
+                    $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
 
                 $row = array();
@@ -4092,7 +4092,7 @@ 
 
             }
 
-            $table = new SortableTableFromArrayConfig($rows,2,10,'UsersContributions_table','','','ASC');
+            $table = new SortableTableFromArrayConfig($rows, 2, 10, 'UsersContributions_table', '', '', 'ASC');
             $table->set_additional_parameters(
                 array(
                     'cidReq' => Security::remove_XSS($_GET['cidReq']),
@@ -4102,13 +4102,13 @@ 
                     'group_id' => intval($_GET['group_id']),
                 )
             );
-            $table->set_header(0,get_lang('Date'), true, array ('style' => 'width:200px;'));
-            $table->set_header(1,get_lang('Type'), true, array ('style' => 'width:30px;'));
-            $table->set_header(2,get_lang('Title'), true, array ('style' => 'width:200px;'));
-            $table->set_header(3,get_lang('Version'), true, array ('style' => 'width:30px;'));
-            $table->set_header(4,get_lang('Comment'), true, array ('style' => 'width:200px;'));
-            $table->set_header(5,get_lang('Progress'), true, array ('style' => 'width:30px;'));
-            $table->set_header(6,get_lang('Rating'), true, array ('style' => 'width:30px;'));
+            $table->set_header(0, get_lang('Date'), true, array('style' => 'width:200px;'));
+            $table->set_header(1, get_lang('Type'), true, array('style' => 'width:30px;'));
+            $table->set_header(2, get_lang('Title'), true, array('style' => 'width:200px;'));
+            $table->set_header(3, get_lang('Version'), true, array('style' => 'width:30px;'));
+            $table->set_header(4, get_lang('Comment'), true, array('style' => 'width:200px;'));
+            $table->set_header(5, get_lang('Progress'), true, array('style' => 'width:30px;'));
+            $table->set_header(6, get_lang('Rating'), true, array('style' => 'width:30px;'));
             $table->display();
         }
     }
@@ -4126,7 +4126,7 @@ 
 
         echo '<div class="actions">'.get_lang('MostChangedPages').'</div>';
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) { //only by professors if page is hidden
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) { //only by professors if page is hidden
             $sql = 'SELECT *, MAX(version) AS MAX FROM '.$tbl_wiki.'
                     WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                     GROUP BY reflink';//TODO:check MAX and group by return last version
@@ -4144,12 +4144,12 @@ 
             while ($obj = Database::fetch_object($allpages)) {
                 //get type assignment icon
                 $ShowAssignment = '';
-                if ($obj->assignment==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
-                    $ShowAssignment= Display::return_icon('px_transparent.gif');
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
+                    $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
 
                 $row = array();
@@ -4177,9 +4177,9 @@ 
                     'group_id' => intval($_GET['group_id']),
                 )
             );
-            $table->set_header(0,get_lang('Type'), true, array ('style' => 'width:30px;'));
-            $table->set_header(1,get_lang('Title'), true);
-            $table->set_header(2,get_lang('Changes'), true);
+            $table->set_header(0, get_lang('Type'), true, array('style' => 'width:30px;'));
+            $table->set_header(1, get_lang('Title'), true);
+            $table->set_header(2, get_lang('Changes'), true);
             $table->display();
         }
     }
@@ -4204,7 +4204,7 @@ 
         /* Only teachers and platform admin can edit the index page.
         Only teachers and platform admin can edit an assignment teacher*/
         if (($current_row['reflink'] == 'index' || $current_row['reflink'] == '' || $current_row['assignment'] == 1) &&
-            (!api_is_allowed_to_edit(false,true) && $this->group_id == 0)
+            (!api_is_allowed_to_edit(false, true) && $this->group_id == 0)
         ) {
             self::setMessage(
                 Display::display_normal_message(get_lang('OnlyEditPagesCourseManager'), false, true)
@@ -4214,7 +4214,7 @@ 
             // check if is a wiki group
             if ($current_row['group_id'] != 0) {
                 //Only teacher, platform admin and group members can edit a wiki group
-                if (api_is_allowed_to_edit(false,true) ||
+                if (api_is_allowed_to_edit(false, true) ||
                     api_is_platform_admin() ||
                     GroupManager :: is_user_in_group($userId, $this->group_id)
                 ) {
@@ -4232,9 +4232,9 @@ 
             //$icon_assignment = null;
             if ($current_row['assignment'] == 1) {
                 self::setMessage(Display::display_normal_message(get_lang('EditAssignmentWarning'), false, true));
-            } elseif($current_row['assignment']==2) {
-                if (($userId == $current_row['user_id'])==false) {
-                    if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+            } elseif ($current_row['assignment'] == 2) {
+                if (($userId == $current_row['user_id']) == false) {
+                    if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                         $PassEdit = true;
                     } else {
                         self::setMessage(Display::display_warning_message(get_lang('LockByTeacher'), false, true));
@@ -4248,11 +4248,11 @@ 
             //show editor if edit is allowed
             if ($PassEdit) {
                 if ($current_row['editlock'] == 1 &&
-                    (api_is_allowed_to_edit(false,true)==false || api_is_platform_admin()==false)
+                    (api_is_allowed_to_edit(false, true) == false || api_is_platform_admin() == false)
                 ) {
                     self::setMessage(Display::display_normal_message(get_lang('PageLockedExtra'), false, true));
                 } else {
-                    if ($last_row['is_editing']!=0 && $last_row['is_editing'] != $userId) {
+                    if ($last_row['is_editing'] != 0 && $last_row['is_editing'] != $userId) {
                         // Checking for concurrent users
                         $timestamp_edit = strtotime($last_row['time_edit']);
                         $time_editing = time() - $timestamp_edit;
@@ -4261,7 +4261,7 @@ 
                         $userinfo = api_get_user_info($last_row['is_editing']);
                         $is_being_edited = get_lang('ThisPageisBeginEditedBy').' <a href='.$userinfo['profile_url'].'>'.
                             Display::tag('span', $userinfo['complete_name_with_username']).
-                            get_lang('ThisPageisBeginEditedTryLater').' '.date( "i",$rest_time).' '.get_lang('MinMinutes');
+                            get_lang('ThisPageisBeginEditedTryLater').' '.date("i", $rest_time).' '.get_lang('MinMinutes');
                         self::setMessage(Display::display_normal_message($is_being_edited, false, true));
                     } else {
                         self::setMessage(Display::display_confirmation_message(
@@ -4369,9 +4369,9 @@ 
                 GROUP BY reflink
                 ORDER BY reflink ASC';
         $allpages = Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
-            if ($row['reflink']=='index') {
-                $row['reflink']=str_replace(' ', '_', get_lang('DefaultTitle'));
+        while ($row = Database::fetch_array($allpages)) {
+            if ($row['reflink'] == 'index') {
+                $row['reflink'] = str_replace(' ', '_', get_lang('DefaultTitle'));
             }
             $pages[] = $row['reflink'];
         }
@@ -4389,16 +4389,16 @@ 
 
         $allpages = Database::query($sql);
 
-        while ($row=Database::fetch_array($allpages)) {
+        while ($row = Database::fetch_array($allpages)) {
             //remove self reference
-            $row['linksto']= str_replace($row["reflink"], " ", trim($row["linksto"]));
+            $row['linksto'] = str_replace($row["reflink"], " ", trim($row["linksto"]));
             $refs = explode(" ", trim($row["linksto"]));
 
             // Find linksto into reflink. If found ->page is linked
             foreach ($refs as $v) {
                 if (in_array($v, $pages)) {
-                    if (trim($v)!="") {
-                        $linked[]=$v;
+                    if (trim($v) != "") {
+                        $linked[] = $v;
                     }
                 }
             }
@@ -4410,12 +4410,12 @@ 
         $rows = array();
         foreach ($linked as $linked_show) {
             $row = array();
-            $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=showpage&title='.api_htmlentities(urlencode(str_replace('_',' ',$linked_show))).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
-                str_replace('_',' ',$linked_show).'</a>';
+            $row[] = '<a href="'.api_get_self().'?cidReq='.$_course['code'].'&action=showpage&title='.api_htmlentities(urlencode(str_replace('_', ' ', $linked_show))).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'">'.
+                str_replace('_', ' ', $linked_show).'</a>';
             $rows[] = $row;
         }
 
-        $table = new SortableTableFromArrayConfig($rows,0,10,'LinkedPages_table','','','DESC');
+        $table = new SortableTableFromArrayConfig($rows, 0, 10, 'LinkedPages_table', '', '', 'DESC');
         $table->set_additional_parameters(
             array(
                 'cidReq' => Security::remove_XSS($_GET['cidReq']),
@@ -4424,7 +4424,7 @@ 
                 'group_id' => intval($_GET['group_id']),
             )
         );
-        $table->set_header(0,get_lang('Title'), true);
+        $table->set_header(0, get_lang('Title'), true);
         $table->display();
     }
 
@@ -4449,8 +4449,8 @@ 
                 WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                 GROUP BY reflink
                 ORDER BY reflink ASC';
-        $allpages=Database::query($sql);
-        while ($row=Database::fetch_array($allpages)) {
+        $allpages = Database::query($sql);
+        while ($row = Database::fetch_array($allpages)) {
             $pages[] = $row['reflink'];
         }
 
@@ -4465,14 +4465,14 @@ 
                 )';
         $allpages = Database::query($sql);
         $array_refs_linked = array();
-        while ($row=Database::fetch_array($allpages)) {
-            $row['linksto']= str_replace($row["reflink"], " ", trim($row["linksto"])); //remove self reference
+        while ($row = Database::fetch_array($allpages)) {
+            $row['linksto'] = str_replace($row["reflink"], " ", trim($row["linksto"])); //remove self reference
             $refs = explode(" ", trim($row["linksto"]));
-            foreach ($refs as $ref_linked){
-                if ($ref_linked==str_replace(' ','_',get_lang('DefaultTitle'))) {
-                    $ref_linked='index';
+            foreach ($refs as $ref_linked) {
+                if ($ref_linked == str_replace(' ', '_', get_lang('DefaultTitle'))) {
+                    $ref_linked = 'index';
                 }
-                $array_refs_linked[]= $ref_linked;
+                $array_refs_linked[] = $ref_linked;
             }
         }
 
@@ -4494,20 +4494,20 @@ 
 		                '.$groupfilter.$condition_session.' AND
 		                reflink="'.Database::escape_string($orphaned_show).'"
                     GROUP BY reflink';
-            $allpages=Database::query($sql);
-            while ($row=Database::fetch_array($allpages)) {
-                $orphaned_title=$row['title'];
-                $orphaned_visibility=$row['visibility'];
-                if ($row['assignment']==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png','','',ICON_SIZE_SMALL);
-                } elseif ($row['assignment']==2) {
-                    $ShowAssignment=Display::return_icon('wiki_work.png','','',ICON_SIZE_SMALL);
-                } elseif ($row['assignment']==0) {
-                    $ShowAssignment= Display::return_icon('px_transparent.gif');
+            $allpages = Database::query($sql);
+            while ($row = Database::fetch_array($allpages)) {
+                $orphaned_title = $row['title'];
+                $orphaned_visibility = $row['visibility'];
+                if ($row['assignment'] == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', '', '', ICON_SIZE_SMALL);
+                } elseif ($row['assignment'] == 2) {
+                    $ShowAssignment = Display::return_icon('wiki_work.png', '', '', ICON_SIZE_SMALL);
+                } elseif ($row['assignment'] == 0) {
+                    $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
             }
 
-            if (!api_is_allowed_to_edit(false,true) || !api_is_platform_admin() && $orphaned_visibility==0){
+            if (!api_is_allowed_to_edit(false, true) || !api_is_platform_admin() && $orphaned_visibility == 0) {
                 continue;
             }
 
@@ -4519,7 +4519,7 @@ 
             $rows[] = $row;
         }
 
-        $table = new SortableTableFromArrayConfig($rows,1, 10, 'OrphanedPages_table','','','DESC');
+        $table = new SortableTableFromArrayConfig($rows, 1, 10, 'OrphanedPages_table', '', '', 'DESC');
         $table->set_additional_parameters(
             array(
                 'cidReq' => Security::remove_XSS($_GET['cidReq']),
@@ -4528,8 +4528,8 @@ 
                 'group_id' => intval($_GET['group_id']),
             )
         );
-        $table->set_header(0,get_lang('Type'), true, array ('style' => 'width:30px;'));
-        $table->set_header(1,get_lang('Title'), true);
+        $table->set_header(0, get_lang('Type'), true, array('style' => 'width:30px;'));
+        $table->set_header(1, get_lang('Title'), true);
         $table->display();
     }
 
@@ -4551,11 +4551,11 @@ 
                 WHERE  c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                 GROUP BY reflink
                 ORDER BY reflink ASC';
-        $allpages=Database::query($sql);
+        $allpages = Database::query($sql);
 
-        while ($row=Database::fetch_array($allpages)) {
-            if ($row['reflink']=='index'){
-                $row['reflink']=str_replace(' ','_',get_lang('DefaultTitle'));
+        while ($row = Database::fetch_array($allpages)) {
+            if ($row['reflink'] == 'index') {
+                $row['reflink'] = str_replace(' ', '_', get_lang('DefaultTitle'));
             }
             $pages[] = $row['reflink'];
         }
@@ -4569,31 +4569,31 @@ 
 
         $allpages = Database::query($sql);
 
-        while ($row=Database::fetch_array($allpages)) {
+        while ($row = Database::fetch_array($allpages)) {
             $refs = explode(" ", trim($row["linksto"]));
             // Find linksto into reflink. If not found ->page is wanted
             foreach ($refs as $v) {
 
                 if (!in_array($v, $pages)) {
-                    if (trim($v)!="") {
-                        $wanted[]=$v;
+                    if (trim($v) != "") {
+                        $wanted[] = $v;
                     }
                 }
             }
         }
 
-        $wanted = array_unique($wanted);//make a unique list
+        $wanted = array_unique($wanted); //make a unique list
 
         //show table
         $rows = array();
         foreach ($wanted as $wanted_show) {
             $row = array();
             $wanted_show = Security::remove_XSS($wanted_show);
-            $row[] = '<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?cidReq=&action=addnew&title='.str_replace('_',' ',$wanted_show).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'" class="new_wiki_link">'.str_replace('_',' ',$wanted_show).'</a>';//meter un remove xss en lugar de htmlentities
+            $row[] = '<a href="'.api_get_path(WEB_PATH).'main/wiki/index.php?cidReq=&action=addnew&title='.str_replace('_', ' ', $wanted_show).'&session_id='.api_htmlentities($_GET['session_id']).'&group_id='.api_htmlentities($_GET['group_id']).'" class="new_wiki_link">'.str_replace('_', ' ', $wanted_show).'</a>'; //meter un remove xss en lugar de htmlentities
             $rows[] = $row;
         }
 
-        $table = new SortableTableFromArrayConfig($rows,0,10,'WantedPages_table','','','DESC');
+        $table = new SortableTableFromArrayConfig($rows, 0, 10, 'WantedPages_table', '', '', 'DESC');
         $table->set_additional_parameters(
             array(
                 'cidReq' => Security::remove_XSS($_GET['cidReq']),
@@ -4602,7 +4602,7 @@ 
                 'group_id' => intval($_GET['group_id']),
             )
         );
-        $table->set_header(0,get_lang('Title'), true);
+        $table->set_header(0, get_lang('Title'), true);
         $table->display();
     }
 
@@ -4619,7 +4619,7 @@ 
 
         echo '<div class="actions">'.get_lang('MostVisitedPages').'</div>';
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) { //only by professors if page is hidden
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) { //only by professors if page is hidden
             $sql = 'SELECT *, SUM(hits) AS tsum FROM '.$tbl_wiki.'
                     WHERE c_id = '.$course_id.' AND '.$groupfilter.$condition_session.'
                     GROUP BY reflink';
@@ -4640,11 +4640,11 @@ 
             while ($obj = Database::fetch_object($allpages)) {
                 //get type assignment icon
                 $ShowAssignment = '';
-                if ($obj->assignment==1) {
-                    $ShowAssignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==2) {
-                    $ShowAssignment=$ShowAssignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWork'),'',ICON_SIZE_SMALL);
-                } elseif ($obj->assignment==0) {
+                if ($obj->assignment == 1) {
+                    $ShowAssignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDesc'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 2) {
+                    $ShowAssignment = $ShowAssignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWork'), '', ICON_SIZE_SMALL);
+                } elseif ($obj->assignment == 0) {
                     $ShowAssignment = Display::return_icon('px_transparent.gif');
                 }
 
@@ -4673,7 +4673,7 @@ 
                     'group_id' => intval($_GET['group_id']),
                 )
             );
-            $table->set_header(0,get_lang('Type'), true, array ('style' => 'width:30px;'));
+            $table->set_header(0, get_lang('Type'), true, array('style' => 'width:30px;'));
             $table->set_header(1, get_lang('Title'), true);
             $table->set_header(2, get_lang('Visits'), true);
             $table->display();
@@ -4698,8 +4698,8 @@ 
 
         if (api_is_allowed_to_session_edit(false, true) && api_is_allowed_to_edit()) {
             // menu add page
-            $actionsLeft .= '<a href="index.php?cidReq=' . $_course['id'] . '&action=addnew&session_id=' . $session_id . '&group_id=' . $groupId . '"' . self::is_active_navigation_tab('addnew').'>'
-            . Display::return_icon('add.png', get_lang('AddNew'), '', ICON_SIZE_MEDIUM) . '</a>';
+            $actionsLeft .= '<a href="index.php?cidReq='.$_course['id'].'&action=addnew&session_id='.$session_id.'&group_id='.$groupId.'"'.self::is_active_navigation_tab('addnew').'>'
+            . Display::return_icon('add.png', get_lang('AddNew'), '', ICON_SIZE_MEDIUM).'</a>';
         }
 
         $lock_unlock_addnew = null;
@@ -4707,12 +4707,12 @@ 
 
         if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
             // page action: enable or disable the adding of new pages
-            if (self::check_addnewpagelock()==0) {
+            if (self::check_addnewpagelock() == 0) {
                 $protect_addnewpage = Display::return_icon('off.png', get_lang('AddOptionProtected'));
-                $lock_unlock_addnew ='unlockaddnew';
+                $lock_unlock_addnew = 'unlockaddnew';
             } else {
                 $protect_addnewpage = Display::return_icon('on.png', get_lang('AddOptionUnprotected'));
-                $lock_unlock_addnew ='lockaddnew';
+                $lock_unlock_addnew = 'lockaddnew';
             }
         }
 
@@ -4732,7 +4732,7 @@ 
             get_lang('RecentChanges').'</a>';
 
 
-        echo Display::toolbarAction('toolbar-wiki', array( 0 => $actionsLeft));
+        echo Display::toolbarAction('toolbar-wiki', array(0 => $actionsLeft));
     }
 
     /**
@@ -4750,7 +4750,7 @@ 
             return;
         }
 
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
             self::setMessage('<div id="wikititle">'.get_lang('DeletePageHistory').'</div>');
 
             if ($page == "index") {
@@ -4792,7 +4792,7 @@ 
         $userId = api_get_user_id();
 
         if (api_get_session_id() != 0 &&
-            api_is_allowed_to_session_edit(false,true) == false
+            api_is_allowed_to_session_edit(false, true) == false
         ) {
             api_not_allowed();
         }
@@ -4815,12 +4815,12 @@ 
                 Display::display_error_message(get_lang('MustSelectPage'), false, true)
             );
             return;
-        } elseif ($row['content']=='' && $row['title']=='' && $page=='index') {
+        } elseif ($row['content'] == '' && $row['title'] == '' && $page == 'index') {
 
             // Table structure for better export to pdf
             $default_table_for_content_Start = '<table align="center" border="0"><tr><td align="center">';
             $default_table_for_content_End = '</td></tr></table>';
-            $content = $default_table_for_content_Start.sprintf(get_lang('DefaultContent'),api_get_path(WEB_IMG_PATH)).$default_table_for_content_End;
+            $content = $default_table_for_content_Start.sprintf(get_lang('DefaultContent'), api_get_path(WEB_IMG_PATH)).$default_table_for_content_End;
             $title = get_lang('DefaultTitle');
             $page_id = 0;
         } else {
@@ -4845,7 +4845,7 @@ 
             // Check if is a wiki group
             if (!empty($groupId)) {
                 //Only teacher, platform admin and group members can edit a wiki group
-                if (api_is_allowed_to_edit(false,true) ||
+                if (api_is_allowed_to_edit(false, true) ||
                     api_is_platform_admin() ||
                     GroupManager :: is_user_in_group($userId, $groupId)
                 ) {
@@ -4858,7 +4858,7 @@ 
                     );
                 }
             } else {
-                $PassEdit=true;
+                $PassEdit = true;
             }
 
             $icon_assignment = null;
@@ -4868,10 +4868,10 @@ 
                     Display::return_message(get_lang('EditAssignmentWarning'))
                 );
 
-                $icon_assignment=Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'),'',ICON_SIZE_SMALL);
+                $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'), '', ICON_SIZE_SMALL);
             } elseif ($row['assignment'] == 2) {
-                $icon_assignment=Display::return_icon('wiki_work.png', get_lang('AssignmentWorkExtra'),'',ICON_SIZE_SMALL);
-                if (($userId == $row['user_id'])==false) {
+                $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWorkExtra'), '', ICON_SIZE_SMALL);
+                if (($userId == $row['user_id']) == false) {
                     if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                         $PassEdit = true;
                     } else {
@@ -4891,7 +4891,7 @@ 
             if ($PassEdit) {
                 //show editor if edit is allowed
                 if ($row['editlock'] == 1 &&
-                    (api_is_allowed_to_edit(false, true) == false || api_is_platform_admin()==false)
+                    (api_is_allowed_to_edit(false, true) == false || api_is_platform_admin() == false)
                 ) {
                     Display::addFlash(
                         Display::return_message(
@@ -4902,8 +4902,8 @@ 
                     // Check tasks
 
                     if (!empty($row['startdate_assig']) &&
-                        $row['startdate_assig']!='0000-00-00 00:00:00' &&
-                        time()<strtotime($row['startdate_assig'])
+                        $row['startdate_assig'] != '0000-00-00 00:00:00' &&
+                        time() < strtotime($row['startdate_assig'])
                     ) {
                         $message = get_lang('TheTaskDoesNotBeginUntil').': '.api_get_local_time($row['startdate_assig'], null, date_default_timezone_get());
 
@@ -4920,10 +4920,10 @@ 
                     }
 
                     if (!empty($row['enddate_assig']) &&
-                        $row['enddate_assig']!='0000-00-00 00:00:00' &&
+                        $row['enddate_assig'] != '0000-00-00 00:00:00' &&
                         time() > strtotime($row['enddate_assig']) &&
-                        $row['enddate_assig']!='0000-00-00 00:00:00' &&
-                        $row['delayedsubmit']==0
+                        $row['enddate_assig'] != '0000-00-00 00:00:00' &&
+                        $row['delayedsubmit'] == 0
                     ) {
                         $message = get_lang('TheDeadlineHasBeenCompleted').': '.api_get_local_time($row['enddate_assig'], null, date_default_timezone_get());
                         Display::addFlash(
@@ -4932,25 +4932,25 @@ 
                                 'warning'
                             )
                         );
-                        if (!api_is_allowed_to_edit(false,true)) {
+                        if (!api_is_allowed_to_edit(false, true)) {
                             $this->redirectHome();
                         }
                     }
 
-                    if (!empty($row['max_version']) && $row['version']>=$row['max_version']) {
-                        $message=get_lang('HasReachedMaxiNumVersions');
+                    if (!empty($row['max_version']) && $row['version'] >= $row['max_version']) {
+                        $message = get_lang('HasReachedMaxiNumVersions');
                         Display::addFlash(
                             Display::return_message(
                                 $message,
                                 'warning'
                             )
                         );
-                        if (!api_is_allowed_to_edit(false,true)) {
+                        if (!api_is_allowed_to_edit(false, true)) {
                             $this->redirectHome();
                         }
                     }
 
-                    if (!empty($row['max_text']) && $row['max_text']<=self::word_count($row['content'])) {
+                    if (!empty($row['max_text']) && $row['max_text'] <= self::word_count($row['content'])) {
                         $message = get_lang('HasReachedMaxNumWords');
                         Display::addFlash(
                             Display::return_message(
@@ -4958,50 +4958,50 @@ 
                                 'warning'
                             )
                         );
-                        if (!api_is_allowed_to_edit(false,true)) {
+                        if (!api_is_allowed_to_edit(false, true)) {
                             $this->redirectHome();
                         }
                     }
 
                     if (!empty($row['task'])) {
                         //previous change 0 by text
-                        if ($row['startdate_assig']=='0000-00-00 00:00:00') {
-                            $message_task_startdate  =get_lang('No');
+                        if ($row['startdate_assig'] == '0000-00-00 00:00:00') {
+                            $message_task_startdate = get_lang('No');
                         } else {
                             $message_task_startdate = api_get_local_time($row['startdate_assig'], null, date_default_timezone_get());
                         }
 
-                        if ($row['enddate_assig']=='0000-00-00 00:00:00') {
+                        if ($row['enddate_assig'] == '0000-00-00 00:00:00') {
                             $message_task_enddate = get_lang('No');
                         } else {
                             $message_task_enddate = api_get_local_time($row['enddate_assig'], null, date_default_timezone_get());
                         }
 
-                        if ($row['delayedsubmit']==0) {
-                            $message_task_delayedsubmit=get_lang('No');
+                        if ($row['delayedsubmit'] == 0) {
+                            $message_task_delayedsubmit = get_lang('No');
                         } else {
-                            $message_task_delayedsubmit=get_lang('Yes');
+                            $message_task_delayedsubmit = get_lang('Yes');
                         }
 
-                        if ($row['max_version']==0) {
-                            $message_task_max_version=get_lang('No');
+                        if ($row['max_version'] == 0) {
+                            $message_task_max_version = get_lang('No');
                         } else {
-                            $message_task_max_version=$row['max_version'];
+                            $message_task_max_version = $row['max_version'];
                         }
 
-                        if ($row['max_text']==0) {
-                            $message_task_max_text=get_lang('No');
+                        if ($row['max_text'] == 0) {
+                            $message_task_max_text = get_lang('No');
                         } else {
-                            $message_task_max_text=$row['max_text'];
+                            $message_task_max_text = $row['max_text'];
                         }
 
                         // Comp message
-                        $message_task='<b>'.get_lang('DescriptionOfTheTask').'</b><p>'.$row['task'].'</p><hr>';
-                        $message_task.='<p>'.get_lang('StartDate').': '.$message_task_startdate.'</p>';
-                        $message_task.='<p>'.get_lang('EndDate').': '.$message_task_enddate;
-                        $message_task.=' ('.get_lang('AllowLaterSends').') '.$message_task_delayedsubmit.'</p>';
-                        $message_task.='<p>'.get_lang('OtherSettings').': '.get_lang('NMaxVersion').': '.$message_task_max_version;
-                        $message_task.=' '.get_lang('NMaxWords').': '.$message_task_max_text;
+                        $message_task = '<b>'.get_lang('DescriptionOfTheTask').'</b><p>'.$row['task'].'</p><hr>';
+                        $message_task .= '<p>'.get_lang('StartDate').': '.$message_task_startdate.'</p>';
+                        $message_task .= '<p>'.get_lang('EndDate').': '.$message_task_enddate;
+                        $message_task .= ' ('.get_lang('AllowLaterSends').') '.$message_task_delayedsubmit.'</p>';
+                        $message_task .= '<p>'.get_lang('OtherSettings').': '.get_lang('NMaxVersion').': '.$message_task_max_version;
+                        $message_task .= ' '.get_lang('NMaxWords').': '.$message_task_max_text;
                         // Display message
                         Display::addFlash(
                             Display::return_message(
@@ -5012,11 +5012,11 @@ 
 
                     $feedback_message = '';
                     if ($row['progress'] == $row['fprogress1'] && !empty($row['fprogress1'])) {
-                        $feedback_message='<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback1']).'</p>';
+                        $feedback_message = '<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback1']).'</p>';
                     } elseif ($row['progress'] == $row['fprogress2'] && !empty($row['fprogress2'])) {
-                        $feedback_message='<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback2']).'</p>';
+                        $feedback_message = '<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback2']).'</p>';
                     } elseif ($row['progress'] == $row['fprogress3'] && !empty($row['fprogress3'])) {
-                        $feedback_message='<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback3']).'</p>';
+                        $feedback_message = '<b>'.get_lang('Feedback').'</b><p>'.api_htmlentities($row['feedback3']).'</p>';
                     }
 
                     if (!empty($feedback_message)) {
@@ -5041,14 +5041,14 @@ 
                                 WHERE c_id = '.$course_id.' AND id="'.$row['id'].'"';
                         Database::query($sql);
                     } elseif ($row['is_editing'] != $userId) {
-                        $timestamp_edit=strtotime($row['time_edit']);
+                        $timestamp_edit = strtotime($row['time_edit']);
                         $time_editing = time() - $timestamp_edit;
                         $max_edit_time = 1200; // 20 minutes
                         $rest_time = $max_edit_time - $time_editing;
 
                         $userinfo = api_get_user_info($row['is_editing']);
                         $is_being_edited = get_lang('ThisPageisBeginEditedBy').' '.UserManager::getUserProfileLink($userinfo).'
-                            '.get_lang('ThisPageisBeginEditedTryLater').' '.date( "i",$rest_time).' '.get_lang('MinMinutes').'';
+                            '.get_lang('ThisPageisBeginEditedTryLater').' '.date("i", $rest_time).' '.get_lang('MinMinutes').'';
 
                         Display::addFlash(
                             Display::return_message(
@@ -5062,7 +5062,7 @@ 
                     // Form.
                     $url = api_get_self().'?action=edit&title='.urlencode($page).'&session_id='.api_get_session_id().'&group_id='.api_get_group_id().'&'.api_get_cidreq();
                     $form = new FormValidator('wiki', 'post', $url);
-                    $form->addElement('header', $icon_assignment.str_repeat('&nbsp;',3).api_htmlentities($title));
+                    $form->addElement('header', $icon_assignment.str_repeat('&nbsp;', 3).api_htmlentities($title));
                     self::setForm($form, $row);
                     $form->addElement('hidden', 'title');
                     $form->addElement('button', 'SaveWikiChange', get_lang('Save'));
@@ -5085,7 +5085,7 @@ 
                             );
                         } elseif (!self::double_post($_POST['wpost_id'])) {
                             //double post
-                        } elseif ($_POST['version']!='' && $_SESSION['_version'] !=0 && $_POST['version'] != $_SESSION['_version']) {
+                        } elseif ($_POST['version'] != '' && $_SESSION['_version'] != 0 && $_POST['version'] != $_SESSION['_version']) {
                             //prevent concurrent users and double version
                             Display::addFlash(
                                 Display::return_message(
@@ -5147,7 +5147,7 @@ 
         $KeyAssignment = null;
         $KeyTitle = null;
         $KeyUserId = null;
-        while ($row=Database::fetch_array($result)) {
+        while ($row = Database::fetch_array($result)) {
             $KeyVisibility = $row['visibility'];
             $KeyAssignment = $row['assignment'];
             $KeyTitle = $row['title'];
@@ -5156,7 +5156,7 @@ 
         $icon_assignment = null;
         if ($KeyAssignment == 1) {
             $icon_assignment = Display::return_icon('wiki_assignment.png', get_lang('AssignmentDescExtra'), '', ICON_SIZE_SMALL);
-        } elseif($KeyAssignment == 2) {
+        } elseif ($KeyAssignment == 2) {
             $icon_assignment = Display::return_icon('wiki_work.png', get_lang('AssignmentWorkExtra'), '', ICON_SIZE_SMALL);
         }
 
@@ -5164,10 +5164,10 @@ 
 
         //if the page is hidden and is a job only sees its author and professor
         if ($KeyVisibility == 1 ||
-            api_is_allowed_to_edit(false,true) ||
+            api_is_allowed_to_edit(false, true) ||
             api_is_platform_admin() ||
             (
-                $KeyAssignment==2 && $KeyVisibility==0 &&
+                $KeyAssignment == 2 && $KeyVisibility == 0 &&
                 ($userId == $KeyUserId)
             )
         ) {
@@ -5197,7 +5197,7 @@ 
                     get_lang('ShowDifferences').' '.get_lang('WordsDiff').'</button>';
                 echo '<br/><br/>';
 
-                $counter=0;
+                $counter = 0;
                 $total_versions = Database::num_rows($result);
 
                 while ($row = Database::fetch_array($result)) {
@@ -5205,10 +5205,10 @@ 
                     $username = api_htmlentities(sprintf(get_lang('LoginX'), $userinfo['username']), ENT_QUOTES);
 
                     echo '<li style="margin-bottom: 5px;">';
-                    ($counter==0) ? $oldstyle='style="visibility: hidden;"':$oldstyle='';
-                    ($counter==0) ? $newchecked=' checked': $newchecked='';
-                    ($counter==$total_versions-1) ? $newstyle='style="visibility: hidden;"':$newstyle='';
-                    ($counter==1) ? $oldchecked=' checked':$oldchecked='';
+                    ($counter == 0) ? $oldstyle = 'style="visibility: hidden;"' : $oldstyle = '';
+                    ($counter == 0) ? $newchecked = ' checked' : $newchecked = '';
+                    ($counter == $total_versions - 1) ? $newstyle = 'style="visibility: hidden;"' : $newstyle = '';
+                    ($counter == 1) ? $oldchecked = ' checked' : $oldchecked = '';
                     echo '<input name="old" value="'.$row['id'].'" type="radio" '.$oldstyle.' '.$oldchecked.'/> ';
                     echo '<input name="new" value="'.$row['id'].'" type="radio" '.$newstyle.' '.$newchecked.'/> ';
                     echo '<a href="'.api_get_self().'?action=showpage&amp;title='.api_htmlentities(urlencode($page)).'&amp;view='.$row['id'].'">';
@@ -5226,7 +5226,7 @@ 
                     $comment = $row['comment'];
                     if (!empty($comment)) {
                         echo get_lang('Comments').': '.api_htmlentities(api_substr($row['comment'], 0, 100));
-                        if (api_strlen($row['comment'])>100) {
+                        if (api_strlen($row['comment']) > 100) {
                             echo '... ';
                         }
                     } else {
@@ -5251,8 +5251,8 @@ 
 
                 $sql_new = "SELECT * FROM $tbl_wiki
                             WHERE c_id = $course_id AND id='".Database::escape_string($_POST['new'])."'";
-                $result_new=Database::query($sql_new);
-                $version_new=Database::fetch_array($result_new);
+                $result_new = Database::query($sql_new);
+                $version_new = Database::fetch_array($result_new);
                 $oldTime = isset($version_old['dtime']) ? $version_old['dtime'] : null;
                 $oldContent = isset($version_old['content']) ? $version_old['content'] : null;
 
@@ -5279,9 +5279,9 @@ 
 
 
                 if (isset($_POST['HistoryDifferences'])) {
-                    echo '<table>'.diff($oldContent, $version_new['content'], true, 'format_table_line' ).'</table>'; // format_line mode is better for words
+                    echo '<table>'.diff($oldContent, $version_new['content'], true, 'format_table_line').'</table>'; // format_line mode is better for words
                     echo '<br />';
-                    echo '<strong>'.get_lang('Legend').'</strong><div class="diff">' . "\n";
+                    echo '<strong>'.get_lang('Legend').'</strong><div class="diff">'."\n";
                     echo '<table><tr>';
                     echo  '<td>';
                     echo '</td><td>';
@@ -5300,7 +5300,7 @@ 
                     $renderer = new Text_Diff_Renderer_inline();
                     echo '<style>del{background:#fcc}ins{background:#cfc}</style>'.$renderer->render($diff); // Code inline
                     echo '<br />';
-                    echo '<strong>'.get_lang('Legend').'</strong><div class="diff">' . "\n";
+                    echo '<strong>'.get_lang('Legend').'</strong><div class="diff">'."\n";
                     echo '<table><tr>';
                     echo  '<td>';
                     echo '</td><td>';
@@ -5348,7 +5348,7 @@ 
         echo '<td style="vertical-align:top">';
         echo '<ul>';
         // Submenu Statistics
-        if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+        if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
             echo '<li><a href="index.php?cidReq='.$_course['id'].'&action=statistics&session_id='.$session_id.'&group_id='.$groupId.'">'.get_lang('Statistics').'</a></li>';
         }
         echo '      </ul>';
@@ -5421,7 +5421,7 @@ 
                 break;
             case 'deletewiki':
                 $title = '<div class="actions">'.get_lang('DeleteWiki').'</div>';
-                if (api_is_allowed_to_edit(false,true) || api_is_platform_admin()) {
+                if (api_is_allowed_to_edit(false, true) || api_is_platform_admin()) {
                     $message = get_lang('ConfirmDeleteWiki');
                     $message .= '<p>
                         <a href="index.php?'.api_get_cidreq().'">'.get_lang('No').'</a>
@@ -5452,14 +5452,14 @@ 
                 self::getLinks($page);
                 break;
             case 'addnew':
-                if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
+                if (api_get_session_id() != 0 && api_is_allowed_to_session_edit(false, true) == false) {
                     api_not_allowed();
                 }
                 echo '<div class="actions">'.get_lang('AddNew').'</div>';
                 echo '<br/>';
                 //first, check if page index was created. chektitle=false
                 if (self::checktitle('index')) {
-                    if (api_is_allowed_to_edit(false,true) ||
+                    if (api_is_allowed_to_edit(false, true) ||
                         api_is_platform_admin() ||
                         GroupManager::is_user_in_group(api_get_user_id(), api_get_group_id())
                     ) {
@@ -5467,10 +5467,10 @@ 
                     } else {
                         self::setMessage(Display::display_normal_message(get_lang('WikiStandBy'), false, true));
                     }
-                } elseif (self::check_addnewpagelock()==0 && (api_is_allowed_to_edit(false, true)==false || api_is_platform_admin()==false)) {
+                } elseif (self::check_addnewpagelock() == 0 && (api_is_allowed_to_edit(false, true) == false || api_is_platform_admin() == false)) {
                     self::setMessage(Display::display_error_message(get_lang('AddPagesLocked'), false, true));
                 } else {
-                    if (api_is_allowed_to_edit(false,true) ||
+                    if (api_is_allowed_to_edit(false, true) ||
                         api_is_platform_admin() ||
                         GroupManager::is_user_in_group(api_get_user_id(), api_get_group_id()) ||
                         $_GET['group_id'] == 0

main/work/upload_corrections.php

Unused Use Statements -1 removed lines

@@ -1,7 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-use ChamiloSession as Session;
 use Symfony\Component\Finder\Finder;
 
 require_once '../inc/global.inc.php';

Spacing +2 added lines, -2 removed lines

@@ -5,7 +5,7 @@ 
 use Symfony\Component\Finder\Finder;
 
 require_once '../inc/global.inc.php';
-$current_course_tool  = TOOL_STUDENTPUBLICATION;
+$current_course_tool = TOOL_STUDENTPUBLICATION;
 
 api_protect_course_script(true);
 
@@ -70,7 +70,7 @@ 
         $zip = new PclZip($_FILES['file']['tmp_name']);
 
         // Check the zip content (real size and file extension)
-        $zipFileList = (array)$zip->listContent();
+        $zipFileList = (array) $zip->listContent();
 
         $realSize = 0;
         foreach ($zipFileList as & $this_content) {

src/Chamilo/CoreBundle/Component/Filesystem/Data.php

Unused Use Statements -1 removed lines

@@ -8,7 +8,6 @@
 use Chamilo\UserBundle\Entity\User;
 use MediaAlchemyst\Alchemyst;
 use Sunra\PhpSimple\HtmlDomParser;
-use Symfony\Component\Console;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Filesystem\Filesystem;
 use Symfony\Component\Finder\Finder;

src/Chamilo/CoreBundle/Entity/Listener/CourseListener.php

Unused Use Statements -2 removed lines

@@ -3,11 +3,9 @@
 
 namespace Chamilo\CoreBundle\Entity\Listener;
 
-use Chamilo\CoreBundle\Entity\Tool;
 use Chamilo\CourseBundle\ToolChain;
 use Doctrine\ORM\Event\LifecycleEventArgs;
 use Chamilo\CoreBundle\Entity\Course;
-use Doctrine\ORM\Mapping as ORM;
 
 /**
  * Class CourseListener