chamilo / chamilo-lms

main/notebook/index.php

Indentation +12 added lines, -12 removed lines

@@ -37,12 +37,12 @@ 
 
 // Tool name
 if (isset($_GET['action']) && $_GET['action'] == 'addnote') {
-	$tool = 'NoteAddNew';
-	$interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('ToolNotebook'));
+    $tool = 'NoteAddNew';
+    $interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('ToolNotebook'));
 }
 if (isset($_GET['action']) && $_GET['action'] == 'editnote') {
-	$tool = 'ModifyNote';
-	$interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('ToolNotebook'));
+    $tool = 'ModifyNote';
+    $interbreadcrumb[] = array('url' => 'index.php', 'name' => get_lang('ToolNotebook'));
 }
 
 // Displaying the header
@@ -53,16 +53,16 @@ 
 
 // Action handling: Adding a note
 if (isset($_GET['action']) && $_GET['action'] == 'addnote') {
-	if (api_get_session_id() != 0 && !api_is_allowed_to_session_edit(false, true)) {
-		api_not_allowed();
-	}
+    if (api_get_session_id() != 0 && !api_is_allowed_to_session_edit(false, true)) {
+        api_not_allowed();
+    }
 
-	if (!empty($_GET['isStudentView'])) {
-		NotebookManager::display_notes();
-		exit;
-	}
+    if (!empty($_GET['isStudentView'])) {
+        NotebookManager::display_notes();
+        exit;
+    }
 
-	$_SESSION['notebook_view'] = 'creation_date';
+    $_SESSION['notebook_view'] = 'creation_date';
 
     $form = new FormValidator(
         'note',

Spacing +3 added lines, -3 removed lines

@@ -10,7 +10,7 @@ 
 // Including the global initialization file
 require_once '../inc/global.inc.php';
 
-$current_course_tool  = TOOL_NOTEBOOK;
+$current_course_tool = TOOL_NOTEBOOK;
 
 // The section (tabs)
 $this_section = SECTION_COURSES;
@@ -96,7 +96,7 @@ 
         NotebookManager::display_notes();
     } else {
         echo '<div class="actions">';
-        echo '<a href="index.php">'.Display::return_icon('back.png',get_lang('BackToNotesList'),'',ICON_SIZE_MEDIUM).'</a>';
+        echo '<a href="index.php">'.Display::return_icon('back.png', get_lang('BackToNotesList'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '</div>';
         $token = Security::get_token();
         $form->addElement('hidden', 'sec_token');
@@ -147,7 +147,7 @@ 
     } else {
         echo '<div class="actions">';
         echo '<a href="index.php">'.
-            Display::return_icon('back.png',get_lang('BackToNotesList'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('back.png', get_lang('BackToNotesList'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '</div>';
         $token = Security::get_token();
         $form->addElement('hidden', 'sec_token');

main/announcements/download.php

Spacing +6 added lines, -6 removed lines

@@ -28,7 +28,7 @@ 
 $doc_url = str_replace(' ', '+', $doc_url);
 $doc_url = str_replace('/..', '', $doc_url); //echo $doc_url;
 
-if (strpos($doc_url,'../') OR strpos($doc_url,'/..')) {
+if (strpos($doc_url, '../') OR strpos($doc_url, '/..')) {
     $doc_url = '';
 }
 
@@ -43,7 +43,7 @@ 
     //remove last slash if present
     //$doc_url = ($doc_url{strlen($doc_url)-1}=='/')?substr($doc_url,0,strlen($doc_url)-1):$doc_url;
     //mod_rewrite can change /some/path/ to /some/path// in some cases, so clean them all off (René)
-    while ($doc_url{$dul = strlen($doc_url)-1}=='/') $doc_url = substr($doc_url,0,$dul);
+    while ($doc_url{$dul = strlen($doc_url) - 1} == '/') $doc_url = substr($doc_url, 0, $dul);
     //create the path
     $document_explorer = api_get_path(WEB_COURSE_PATH).api_get_course_path(); // home course path
     //redirect
@@ -62,12 +62,12 @@ 
 $sql = "SELECT filename FROM $tbl_announcement_attachment
   	  	WHERE c_id = $course_id AND path LIKE BINARY '$doc_url'";
 
-$result= Database::query($sql);
+$result = Database::query($sql);
 if (Database::num_rows($result) > 0) {
-    $row= Database::fetch_array($result);
-    $title = str_replace(' ','_', $row['filename']);
+    $row = Database::fetch_array($result);
+    $title = str_replace(' ', '_', $row['filename']);
     if (Security::check_abs_path($full_file_name,
-        api_get_path(SYS_COURSE_PATH) . api_get_course_path() . '/upload/announcements/')
+        api_get_path(SYS_COURSE_PATH).api_get_course_path().'/upload/announcements/')
     ) {
         DocumentManager::file_send_for_download($full_file_name, true, $title);
     }

Braces +3 added lines, -1 removed lines

@@ -43,7 +43,9 @@
     //remove last slash if present
     //$doc_url = ($doc_url{strlen($doc_url)-1}=='/')?substr($doc_url,0,strlen($doc_url)-1):$doc_url;
     //mod_rewrite can change /some/path/ to /some/path// in some cases, so clean them all off (René)
-    while ($doc_url{$dul = strlen($doc_url)-1}=='/') $doc_url = substr($doc_url,0,$dul);
+    while ($doc_url{$dul = strlen($doc_url)-1}=='/') {
+        $doc_url = substr($doc_url,0,$dul);
+    }
     //create the path
     $document_explorer = api_get_path(WEB_COURSE_PATH).api_get_course_path(); // home course path
     //redirect

main/survey/survey_invite.php

Spacing +4 added lines, -4 removed lines

@@ -64,7 +64,7 @@ 
 $tool_name = get_lang('SurveyPublication');
 
 // Displaying the header
-Display::display_header($tool_name,'Survey');
+Display::display_header($tool_name, 'Survey');
 
 echo '<script>
 $(function() {
@@ -132,7 +132,7 @@ 
 );
 
 $form->addElement('html', '<div id="check_mail">');
-$form->addElement('checkbox', 'send_mail','', get_lang('SendMail'));
+$form->addElement('checkbox', 'send_mail', '', get_lang('SendMail'));
 $form->addElement('html', '</div>');
 
 $form->addElement('html', '<div id="mail_text_wrapper">');
@@ -219,8 +219,8 @@ 
 	);
 
 	// Saving the invitations for the additional users
-	$values['additional_users'] = $values['additional_users'].';'; 	// This is for the case when you enter only one email
-	$temp = str_replace(',', ';', $values['additional_users']);		// This is to allow , and ; as email separators
+	$values['additional_users'] = $values['additional_users'].';'; // This is for the case when you enter only one email
+	$temp = str_replace(',', ';', $values['additional_users']); // This is to allow , and ; as email separators
 	$additional_users = explode(';', $temp);
 	for ($i = 0; $i < count($additional_users); $i++) {
 		$additional_users[$i] = trim($additional_users[$i]);

Indentation +93 added lines, -93 removed lines

@@ -18,10 +18,10 @@ 
 $this_section = SECTION_COURSES;
 
 if (!api_is_allowed_to_edit(false, true)) {
-	Display :: display_header(get_lang('ToolSurvey'));
-	Display :: display_error_message(get_lang('NotAllowed'), false);
-	Display :: display_footer();
-	exit;
+    Display :: display_header(get_lang('ToolSurvey'));
+    Display :: display_error_message(get_lang('NotAllowed'), false);
+    Display :: display_footer();
+    exit;
 }
 
 // Database table definitions
@@ -37,15 +37,15 @@ 
 $survey_id = Security::remove_XSS($_GET['survey_id']);
 $survey_data = SurveyManager::get_survey($survey_id);
 if (empty($survey_data)) {
-	Display :: display_header(get_lang('ToolSurvey'));
-	Display :: display_error_message(get_lang('InvallidSurvey'), false);
-	Display :: display_footer();
-	exit;
+    Display :: display_header(get_lang('ToolSurvey'));
+    Display :: display_error_message(get_lang('InvallidSurvey'), false);
+    Display :: display_footer();
+    exit;
 }
 
 $urlname = strip_tags(api_substr(api_html_entity_decode($survey_data['title'], ENT_QUOTES), 0, 40));
 if (api_strlen(strip_tags($survey_data['title'])) > 40) {
-	$urlname .= '...';
+    $urlname .= '...';
 }
 
 // Breadcrumbs
@@ -80,23 +80,23 @@ 
 		WHERE c_id = $course_id AND code='".Database::escape_string($survey_data['code'])."'";
 $result = Database::query($sql);
 if (Database::num_rows($result) > 1) {
-	Display::display_warning_message(get_lang('IdenticalSurveycodeWarning'));
+    Display::display_warning_message(get_lang('IdenticalSurveycodeWarning'));
 }
 
 // Invited / answered message
 if ($survey_data['invited'] > 0 && !isset($_POST['submit'])) {
-	$message  = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=answered&survey_id='.$survey_data['survey_id'].'">'.$survey_data['answered'].'</a> ';
-	$message .= get_lang('HaveAnswered').' ';
-	$message .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=invited&survey_id='.$survey_data['survey_id'].'">'.$survey_data['invited'].'</a> ';
-	$message .= get_lang('WereInvited');
-	Display::display_normal_message($message, false);
+    $message  = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=answered&survey_id='.$survey_data['survey_id'].'">'.$survey_data['answered'].'</a> ';
+    $message .= get_lang('HaveAnswered').' ';
+    $message .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=invited&survey_id='.$survey_data['survey_id'].'">'.$survey_data['invited'].'</a> ';
+    $message .= get_lang('WereInvited');
+    Display::display_normal_message($message, false);
 }
 
 // Building the form for publishing the survey
 $form = new FormValidator(
-	'publish_form',
-	'post',
-	api_get_self().'?survey_id='.$survey_id.'&'.api_get_cidreq()
+    'publish_form',
+    'post',
+    api_get_self().'?survey_id='.$survey_id.'&'.api_get_cidreq()
 );
 $form->addElement('header', '', $tool_name);
 
@@ -109,7 +109,7 @@ 
 );
 $possible_users = array();
 foreach ($complete_user_list as & $user) {
-	$possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
+    $possible_users[$user['user_id']] = api_get_person_name($user['firstname'], $user['lastname']);
 }
 
 
@@ -125,10 +125,10 @@ 
 
 // Additional users
 $form->addElement(
-	'textarea',
-	'additional_users',
-	array(get_lang('AdditonalUsers'), get_lang('AdditonalUsersComment')),
-	array('rows' => 5)
+    'textarea',
+    'additional_users',
+    array(get_lang('AdditonalUsers'), get_lang('AdditonalUsersComment')),
+    array('rows' => 5)
 );
 
 $form->addElement('html', '<div id="check_mail">');
@@ -141,15 +141,15 @@ 
 $form->addText('mail_title', get_lang('MailTitle'), false);
 // The text of the mail
 $form->addHtmlEditor(
-	'mail_text',
-	array(get_lang('MailText'), get_lang('UseLinkSyntax')),
-	false,
-	array('ToolbarSet' => 'Survey', 'Height' => '150')
+    'mail_text',
+    array(get_lang('MailText'), get_lang('UseLinkSyntax')),
+    false,
+    array('ToolbarSet' => 'Survey', 'Height' => '150')
 );
 $form->addElement('html', '</div>');
 // You cab send a reminder to unanswered people if the survey is not anonymous
 if ($survey_data['anonymous'] != 1) {
-	$form->addElement('checkbox', 'remindUnAnswered', '', get_lang('RemindUnanswered'));
+    $form->addElement('checkbox', 'remindUnAnswered', '', get_lang('RemindUnanswered'));
 }
 // Allow resending to all selected users
 $form->addElement('checkbox', 'resend_to_all', '', get_lang('ReminderResendToAllUsers'));
@@ -163,11 +163,11 @@ 
 }*/
 $portal_url = api_get_path(WEB_PATH);
 if (api_is_multiple_url_enabled()) {
-	$access_url_id = api_get_current_access_url_id();
-	if ($access_url_id != -1) {
-		$url = api_get_access_url($access_url_id);
-		$portal_url = $url['url'];
-	}
+    $access_url_id = api_get_current_access_url_id();
+    if ($access_url_id != -1) {
+        $url = api_get_access_url($access_url_id);
+        $portal_url = $url['url'];
+    }
 }
 
 // Show the URL that can be used by users to fill a survey without invitation
@@ -177,56 +177,56 @@ 
 $form->addElement('label', null, $auto_survey_link);
 
 if ($form->validate()) {
-   	$values = $form->exportValues();
+        $values = $form->exportValues();
     if (isset($values['send_mail']) && $values['send_mail'] == 1) {
         if (empty($values['mail_title']) || empty($values['mail_text'])) {
             Display :: display_error_message(get_lang('FormHasErrorsPleaseComplete'));
             // Getting the invited users
-        	$defaults = SurveyUtil::get_invited_users($survey_data['code']);
-
-        	// Getting the survey mail text
-        	if (!empty($survey_data['reminder_mail'])) {
-        		$defaults['mail_text'] = $survey_data['reminder_mail'];
-        	} else {
-        		$defaults['mail_text'] = $survey_data['invite_mail'];
-        	}
-        	$defaults['mail_title'] = $survey_data['mail_subject'];
-        	$defaults['send_mail'] = 1;
-        	$form->setDefaults($defaults);
+            $defaults = SurveyUtil::get_invited_users($survey_data['code']);
+
+            // Getting the survey mail text
+            if (!empty($survey_data['reminder_mail'])) {
+                $defaults['mail_text'] = $survey_data['reminder_mail'];
+            } else {
+                $defaults['mail_text'] = $survey_data['invite_mail'];
+            }
+            $defaults['mail_title'] = $survey_data['mail_subject'];
+            $defaults['send_mail'] = 1;
+            $form->setDefaults($defaults);
             $form->display();
             return;
         }
     }
     // Save the invitation mail
-	SurveyUtil::save_invite_mail(
-		$values['mail_text'],
-		$values['mail_title'],
-		!empty($survey_data['invite_mail'])
-	);
+    SurveyUtil::save_invite_mail(
+        $values['mail_text'],
+        $values['mail_title'],
+        !empty($survey_data['invite_mail'])
+    );
 
     $resendAll = isset($values['resend_to_all']) ? $values['resend_to_all'] : '';
     $sendMail = isset($values['send_mail']) ? $values['send_mail'] : '';
     $remindUnAnswered = isset($values['remindUnAnswered']) ? $values['remindUnAnswered'] : '';
 
-	// Saving the invitations for the course users
-	$count_course_users = SurveyUtil::saveInvitations(
-		$values['users'],
-		$values['mail_title'],
-		$values['mail_text'],
+    // Saving the invitations for the course users
+    $count_course_users = SurveyUtil::saveInvitations(
+        $values['users'],
+        $values['mail_title'],
+        $values['mail_text'],
         $resendAll,
         $sendMail,
         $remindUnAnswered
-	);
+    );
 
-	// Saving the invitations for the additional users
-	$values['additional_users'] = $values['additional_users'].';'; 	// This is for the case when you enter only one email
-	$temp = str_replace(',', ';', $values['additional_users']);		// This is to allow , and ; as email separators
-	$additional_users = explode(';', $temp);
-	for ($i = 0; $i < count($additional_users); $i++) {
-		$additional_users[$i] = trim($additional_users[$i]);
-	}
+    // Saving the invitations for the additional users
+    $values['additional_users'] = $values['additional_users'].';'; 	// This is for the case when you enter only one email
+    $temp = str_replace(',', ';', $values['additional_users']);		// This is to allow , and ; as email separators
+    $additional_users = explode(';', $temp);
+    for ($i = 0; $i < count($additional_users); $i++) {
+        $additional_users[$i] = trim($additional_users[$i]);
+    }
 
-	$counter_additional_users = SurveyUtil::saveInvitations(
+    $counter_additional_users = SurveyUtil::saveInvitations(
         $additional_users,
         $values['mail_title'],
         $values['mail_text'],
@@ -235,43 +235,43 @@ 
         $remindUnAnswered
     );
 
-	// Updating the invited field in the survey table
-	SurveyUtil::update_count_invited($survey_data['code']);
-	$total_count = $count_course_users + $counter_additional_users;
+    // Updating the invited field in the survey table
+    SurveyUtil::update_count_invited($survey_data['code']);
+    $total_count = $count_course_users + $counter_additional_users;
     $table_survey = Database :: get_course_table(TABLE_SURVEY);
-	// Counting the number of people that are invited
-	$sql = "SELECT * FROM $table_survey
+    // Counting the number of people that are invited
+    $sql = "SELECT * FROM $table_survey
 	        WHERE
 	        	c_id = $course_id AND
 	        	code = '".Database::escape_string($survey_data['code'])."'
 			";
-	$result = Database::query($sql);
-	$row = Database::fetch_array($result);
-	$total_invited = $row['invited'];
+    $result = Database::query($sql);
+    $row = Database::fetch_array($result);
+    $total_invited = $row['invited'];
     if ($total_invited > 0) {
-    	$message  = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=answered&survey_id='.$survey_data['survey_id'].'">'.
-			$survey_data['answered'].'</a> ';
-    	$message .= get_lang('HaveAnswered').' ';
-    	$message .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=invited&survey_id='.$survey_data['survey_id'].'">'.
-			$total_invited.'</a> ';
-    	$message .= get_lang('WereInvited');
-    	Display::display_normal_message($message, false);
-    	Display::display_confirmation_message($total_count.' '.get_lang('InvitationsSend'));
+        $message  = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=answered&survey_id='.$survey_data['survey_id'].'">'.
+            $survey_data['answered'].'</a> ';
+        $message .= get_lang('HaveAnswered').' ';
+        $message .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invitation.php?view=invited&survey_id='.$survey_data['survey_id'].'">'.
+            $total_invited.'</a> ';
+        $message .= get_lang('WereInvited');
+        Display::display_normal_message($message, false);
+        Display::display_confirmation_message($total_count.' '.get_lang('InvitationsSend'));
     }
 } else {
-	// Getting the invited users
-	$defaults = SurveyUtil::get_invited_users($survey_data['code']);
-
-	// Getting the survey mail text
-	if (!empty($survey_data['reminder_mail'])) {
-		$defaults['mail_text'] = $survey_data['reminder_mail'];
-	} else {
-		$defaults['mail_text'] = $survey_data['invite_mail'];
-	}
-	$defaults['mail_title'] = $survey_data['mail_subject'];
-	$defaults['send_mail'] = 1;
-
-	$form->setDefaults($defaults);
+    // Getting the invited users
+    $defaults = SurveyUtil::get_invited_users($survey_data['code']);
+
+    // Getting the survey mail text
+    if (!empty($survey_data['reminder_mail'])) {
+        $defaults['mail_text'] = $survey_data['reminder_mail'];
+    } else {
+        $defaults['mail_text'] = $survey_data['invite_mail'];
+    }
+    $defaults['mail_title'] = $survey_data['mail_subject'];
+    $defaults['send_mail'] = 1;
+
+    $form->setDefaults($defaults);
     $form->display();
 }
 Display :: display_footer();

main/survey/fillsurvey.php

Indentation +1 added lines, -2 removed lines

@@ -6,8 +6,7 @@
 * @author unknown, the initial survey that did not make it in 1.8 because of bad code
 * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University: cleanup, refactoring and rewriting large parts of the code
 * @author Julio Montoya Armas <gugli100@gmail.com>, Chamilo: Personality Test modification and rewriting large parts of the code as well
-
-* @todo check if the user already filled the survey and if this is the case then the answers have to be updated and not stored again.
+ * @todo check if the user already filled the survey and if this is the case then the answers have to be updated and not stored again.
 * @todo performance could be improved if not the survey_id was stored with the invitation but the survey_code
  */
 // Unsetting the course id (because it is in the URL)

Spacing +6 added lines, -6 removed lines

@@ -112,7 +112,7 @@ 
         $now = api_get_utc_datetime();
         if (Database :: num_rows($result) == 0) {
             $params = [
-                'c_id' => $course_id ,
+                'c_id' => $course_id,
                 'survey_code' => $surveyCode,
                 'user' => $userid,
                 'invitation_code' => $autoInvitationcode,
@@ -471,7 +471,7 @@ 
     $jquery_ready_content = $returnParams['jquery_ready_content'];
 
 // the $jquery_ready_content variable collects all functions that will be load in the $(document).ready javascript function
-    $htmlHeadXtra[] ='<script>
+    $htmlHeadXtra[] = '<script>
     $(document).ready(function(){
         '.$jquery_ready_content.'
     });
@@ -904,16 +904,16 @@ 
                             $group2 = $groups[0];
                             $secondary .= " OR ( survey_group_sec1 = '$group1' AND  survey_group_sec2 = '$group2') ";
                             $secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
-                            $combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
+                            $combi .= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
                         } else {
                             if ($i != 0) {
                                 $secondary .= " OR ( survey_group_sec1 = '$group1' AND  survey_group_sec2 = '$group2') ";
                                 $secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
-                                $combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
+                                $combi .= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
                             } else {
                                 $secondary .= " ( survey_group_sec1 = '$group1' AND  survey_group_sec2 = '$group2') ";
                                 $secondary .= " OR ( survey_group_sec1 = '$group2' AND survey_group_sec2 = '$group1' ) ";
-                                $combi.= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
+                                $combi .= $group1.' - '.$group2." or ".$group2.' - '.$group1.'<br />';
                             }
                         }
                     }
@@ -1132,7 +1132,7 @@ 
                         $questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
                         $questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
                         $questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
-                    }  else {
+                    } else {
                         // If the type is a page break we are finished loading the questions for this page
                         break;
                     }

Braces +1 added lines, -1 removed lines

@@ -1132,7 +1132,7 @@
                         $questions[$row['sort']]['survey_group_sec1'] = $row['survey_group_sec1'];
                         $questions[$row['sort']]['survey_group_sec2'] = $row['survey_group_sec2'];
                         $questions[$row['sort']]['survey_group_pri'] = $row['survey_group_pri'];
-                    }  else {
+                    } else {
                         // If the type is a page break we are finished loading the questions for this page
                         break;
                     }

main/survey/ch_yesno.php

Spacing +1 added lines, -1 removed lines

@@ -43,7 +43,7 @@
                 $class = 'radio-inline';
             }
 
-            $name = 'question' . $questionData['question_id'];
+            $name = 'question'.$questionData['question_id'];
 
             $form->addRadio(
                 $name,

main/survey/reporting.php

Indentation +3 added lines, -3 removed lines

@@ -83,15 +83,15 @@
 
 /** @todo this has to be moved to a more appropriate place (after the display_header of the code)*/
 if (!api_is_allowed_to_edit(false, true) || $isDrhOfCourse) {
-	Display :: display_header(get_lang('ToolSurvey'));
+    Display :: display_header(get_lang('ToolSurvey'));
     // Show error message if the survey can be seen only by tutors
     if ($survey_data['visible_results'] != SURVEY_VISIBLE_TUTOR) {
         SurveyUtil::handle_reporting_actions($survey_data, $people_filled);
     } else {
         Display :: display_error_message(get_lang('NotAllowed'), false);
     }
-	Display :: display_footer();
-	exit;
+    Display :: display_footer();
+    exit;
 }
 
 // Database table definitions

Spacing +6 added lines, -6 removed lines

@@ -149,7 +149,7 @@ 
 // Actions bar
 echo '<div class="actions">';
 echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.$survey_id.'">'.
-    Display::return_icon('back.png', get_lang('BackToSurvey'),'',ICON_SIZE_MEDIUM).'</a>';
+    Display::return_icon('back.png', get_lang('BackToSurvey'), '', ICON_SIZE_MEDIUM).'</a>';
 echo '</div>';
 
 // Content
@@ -159,15 +159,15 @@ 
 ) {
     $myweb_survey_id = $survey_id;
     echo '<div class="sectiontitle"><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=questionreport&amp;survey_id='.$myweb_survey_id.'&amp;'.$cidReq.'&amp;single_page=1">'.
-        Display::return_icon('survey_reporting_overall.png',get_lang('QuestionsOverallReport')).' '.get_lang('QuestionsOverallReport').'</a></div><div class="sectioncomment">'.get_lang('QuestionsOverallReportDetail').' </div>';
+        Display::return_icon('survey_reporting_overall.png', get_lang('QuestionsOverallReport')).' '.get_lang('QuestionsOverallReport').'</a></div><div class="sectioncomment">'.get_lang('QuestionsOverallReportDetail').' </div>';
     echo '<div class="sectiontitle"><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=questionreport&amp;survey_id='.$myweb_survey_id.'&'.$cidReq.'">'.
-        Display::return_icon('survey_reporting_question.gif',get_lang('DetailedReportByQuestion')).' '.get_lang('DetailedReportByQuestion').'</a></div><div class="sectioncomment">'.get_lang('DetailedReportByQuestionDetail').' </div>';
+        Display::return_icon('survey_reporting_question.gif', get_lang('DetailedReportByQuestion')).' '.get_lang('DetailedReportByQuestion').'</a></div><div class="sectioncomment">'.get_lang('DetailedReportByQuestionDetail').' </div>';
     echo '<div class="sectiontitle"><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=userreport&amp;survey_id='.$myweb_survey_id.'&'.$cidReq.'">'.
-        Display::return_icon('survey_reporting_user.gif',get_lang('DetailedReportByUser')).' '.get_lang('DetailedReportByUser').'</a></div><div class="sectioncomment">'.get_lang('DetailedReportByUserDetail').'.</div>';
+        Display::return_icon('survey_reporting_user.gif', get_lang('DetailedReportByUser')).' '.get_lang('DetailedReportByUser').'</a></div><div class="sectioncomment">'.get_lang('DetailedReportByUserDetail').'.</div>';
     echo '<div class="sectiontitle"><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=comparativereport&amp;survey_id='.$myweb_survey_id.'&'.$cidReq.'">'.
-        Display::return_icon('survey_reporting_comparative.gif',get_lang('ComparativeReport')).' '.get_lang('ComparativeReport').'</a></div><div class="sectioncomment">'.get_lang('ComparativeReportDetail').'.</div>';
+        Display::return_icon('survey_reporting_comparative.gif', get_lang('ComparativeReport')).' '.get_lang('ComparativeReport').'</a></div><div class="sectioncomment">'.get_lang('ComparativeReportDetail').'.</div>';
     echo '<div class="sectiontitle"><a href="reporting.php?action=completereport&amp;survey_id='.$myweb_survey_id.'&'.$cidReq.'">'.
-        Display::return_icon('survey_reporting_complete.gif',get_lang('CompleteReport')).' '.get_lang('CompleteReport').'</a></div><div class="sectioncomment">'.get_lang('CompleteReportDetail').'</div>';
+        Display::return_icon('survey_reporting_complete.gif', get_lang('CompleteReport')).' '.get_lang('CompleteReport').'</a></div><div class="sectioncomment">'.get_lang('CompleteReportDetail').'</div>';
 }
 
 // Footer

main/survey/ch_multiplechoice.php

Spacing +2 added lines, -2 removed lines

@@ -31,7 +31,7 @@ 
             foreach ($formData['answers'] as $key => $value) {
                 $this->getForm()->addHtmlEditor('answers['.$key.']', null, false, false, $config);
 
-                if ($key < $total-1) {
+                if ($key < $total - 1) {
                     //$this->getForm()->addButton("move_down[$key]", get_lang('Down'));
                 }
 
@@ -39,7 +39,7 @@ 
                     //$this->getForm()->addButton("move_up[$key]", get_lang('Up'));
                 }
 
-                if ($total> 2) {
+                if ($total > 2) {
                     $this->getForm()->addButton("delete_answer[$key]", get_lang('Delete'), 'trash', 'danger');
                 }
             }

main/survey/question.php

Indentation +38 added lines, -38 removed lines

@@ -19,10 +19,10 @@ 
 
 /** @todo this has to be moved to a more appropriate place (after the display_header of the code)*/
 if (!api_is_allowed_to_edit(false, true)) {
-	Display :: display_header();
-	Display :: display_error_message(get_lang('NotAllowed'), false);
-	Display :: display_footer();
-	exit;
+    Display :: display_header();
+    Display :: display_error_message(get_lang('NotAllowed'), false);
+    Display :: display_footer();
+    exit;
 }
 
 // Is valid request
@@ -42,30 +42,30 @@ 
 $surveyData = SurveyManager::get_survey($_GET['survey_id']);
 
 if (empty($surveyData)) {
-	Display :: display_header(get_lang('ToolSurvey'));
-	Display :: display_error_message(get_lang('InvallidSurvey'), false);
-	Display :: display_footer();
-	exit;
+    Display :: display_header(get_lang('ToolSurvey'));
+    Display :: display_error_message(get_lang('InvallidSurvey'), false);
+    Display :: display_footer();
+    exit;
 }
 
 $urlname = api_substr(api_html_entity_decode($surveyData['title'], ENT_QUOTES), 0, 40);
 if (api_strlen(strip_tags($surveyData['title'])) > 40) {
-	$urlname .= '...';
+    $urlname .= '...';
 }
 
 if ($surveyData['survey_type'] == 1) {
-	$sql = 'SELECT id FROM '.Database :: get_course_table(TABLE_SURVEY_QUESTION_GROUP).'
+    $sql = 'SELECT id FROM '.Database :: get_course_table(TABLE_SURVEY_QUESTION_GROUP).'
 	        WHERE
                 c_id = '.$course_id.' AND
                 survey_id = '.(int)$_GET['survey_id'].' LIMIT 1';
-	$rs = Database::query($sql);
-	if (Database::num_rows($rs)===0) {
+    $rs = Database::query($sql);
+    if (Database::num_rows($rs)===0) {
         Display::addFlash(
             Display::return_message(get_lang('YouNeedToCreateGroups'))
         );
-		header('Location: '.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.(int)$_GET['survey_id']);
-		exit;
-	}
+        header('Location: '.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.(int)$_GET['survey_id']);
+        exit;
+    }
 }
 
 // Breadcrumbs
@@ -80,10 +80,10 @@ 
 
 // Tool name
 if ($_GET['action'] == 'add') {
-	$tool_name = get_lang('AddQuestion');
+    $tool_name = get_lang('AddQuestion');
 }
 if ($_GET['action'] == 'edit') {
-	$tool_name = get_lang('EditQuestion');
+    $tool_name = get_lang('EditQuestion');
 }
 
 // The possible question types
@@ -103,14 +103,14 @@ 
 // Actions
 $actions = '<div class="actions">';
 $actions .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.intval($_GET['survey_id']).'">'.
-	Display::return_icon('back.png', get_lang('BackToSurvey'),'',ICON_SIZE_MEDIUM).'</a>';
+    Display::return_icon('back.png', get_lang('BackToSurvey'),'',ICON_SIZE_MEDIUM).'</a>';
 $actions .= '</div>';
 // Checking if it is a valid type
 if (!in_array($_GET['type'], $possible_types)) {
-	Display :: display_header($tool_name, 'Survey');
-	echo $actions;
-	Display :: display_error_message(get_lang('TypeDoesNotExist'), false);
-	Display :: display_footer();
+    Display :: display_header($tool_name, 'Survey');
+    echo $actions;
+    Display :: display_error_message(get_lang('TypeDoesNotExist'), false);
+    Display :: display_footer();
 }
 
 $error_message = '';
@@ -126,27 +126,27 @@ 
 $formData['answers'] = array('', '');
 
 if ($_GET['type'] == 'yesno') {
-	$formData['answers'][0] = get_lang('Yes');
-	$formData['answers'][1] = get_lang('No');
+    $formData['answers'][0] = get_lang('Yes');
+    $formData['answers'][1] = get_lang('No');
 }
 
 if ($_GET['type'] == 'personality') {
-	$formData['answers'][0] = 1;
-	$formData['answers'][1] = 2;
-	$formData['answers'][2] = 3;
-	$formData['answers'][3] = 4;
-	$formData['answers'][4] = 5;
-
-	$formData['values'][0] = 0;
-	$formData['values'][1] = 0;
-	$formData['values'][2] = 1;
-	$formData['values'][3] = 2;
-	$formData['values'][4] = 3;
+    $formData['answers'][0] = 1;
+    $formData['answers'][1] = 2;
+    $formData['answers'][2] = 3;
+    $formData['answers'][3] = 4;
+    $formData['answers'][4] = 5;
+
+    $formData['values'][0] = 0;
+    $formData['values'][1] = 0;
+    $formData['values'][2] = 1;
+    $formData['values'][3] = 2;
+    $formData['values'][4] = 3;
 }
 
 // We are editing a question
 if (isset($_GET['question_id']) && !empty($_GET['question_id'])) {
-	$formData = SurveyManager::get_question($_GET['question_id']);
+    $formData = SurveyManager::get_question($_GET['question_id']);
 }
 
 $formData = $surveyQuestion->preSave($formData);
@@ -155,8 +155,8 @@ 
 $surveyQuestion->renderForm();
 
 if ($surveyQuestion->getForm()->validate()) {
-	$values = $surveyQuestion->getForm()->getSubmitValues();
-	$surveyQuestion->save($surveyData, $values);
+    $values = $surveyQuestion->getForm()->getSubmitValues();
+    $surveyQuestion->save($surveyData, $values);
 }
 
 Display::display_header($tool_name, 'Survey');

Spacing +4 added lines, -4 removed lines

@@ -57,13 +57,13 @@ 
 	$sql = 'SELECT id FROM '.Database :: get_course_table(TABLE_SURVEY_QUESTION_GROUP).'
 	        WHERE
                 c_id = '.$course_id.' AND
-                survey_id = '.(int)$_GET['survey_id'].' LIMIT 1';
+                survey_id = '.(int) $_GET['survey_id'].' LIMIT 1';
 	$rs = Database::query($sql);
-	if (Database::num_rows($rs)===0) {
+	if (Database::num_rows($rs) === 0) {
         Display::addFlash(
             Display::return_message(get_lang('YouNeedToCreateGroups'))
         );
-		header('Location: '.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.(int)$_GET['survey_id']);
+		header('Location: '.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.(int) $_GET['survey_id']);
 		exit;
 	}
 }
@@ -103,7 +103,7 @@ 
 // Actions
 $actions = '<div class="actions">';
 $actions .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey.php?survey_id='.intval($_GET['survey_id']).'">'.
-	Display::return_icon('back.png', get_lang('BackToSurvey'),'',ICON_SIZE_MEDIUM).'</a>';
+	Display::return_icon('back.png', get_lang('BackToSurvey'), '', ICON_SIZE_MEDIUM).'</a>';
 $actions .= '</div>';
 // Checking if it is a valid type
 if (!in_array($_GET['type'], $possible_types)) {

main/survey/survey.lib.php

Indentation +10 added lines, -10 removed lines

@@ -1207,16 +1207,16 @@
     }
 
     /**
-    * This function saves the question in the shared database
-    *
-    * @param array $form_content all the information of the form
-    * @param array $survey_data all the information of the survey
-    *
-    * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
-    * @version February 2007
-    *
-    * @todo editing of a shared question
-    */
+     * This function saves the question in the shared database
+     *
+     * @param array $form_content all the information of the form
+     * @param array $survey_data all the information of the survey
+     *
+     * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
+     * @version February 2007
+     *
+     * @todo editing of a shared question
+     */
     public function save_shared_question($form_content, $survey_data)
     {
         $_course = api_get_course_info();

Braces +3 added lines, -5 removed lines

@@ -1247,7 +1247,7 @@ 
                     '".Database::escape_string($_course['id'])."')";
             Database::query($sql);
             $shared_question_id = Database::insert_id();
-        }  else {
+        } else {
             // Updating an existing question
             // adding the question to the survey_question table
             $sql = "UPDATE $tbl_survey_question SET
@@ -2776,14 +2776,12 @@ 
                                 echo $answers_of_user[$question_id][$option_id]['value'];
                                 echo "</td>";
                             }
-                        }
-                        else {
+                        } else {
                             echo '<td align="center">';
                             if (!empty($answers_of_user[$question_id][$option_id])) {
                                 if ($answers_of_user[$question_id][$option_id]['value'] != 0) {
                                     echo $answers_of_user[$question_id][$option_id]['value'];
-                                }
-                                else {
+                                } else {
                                     echo 'v';
                                 }
                             }

Doc Comments +17 added lines, -15 removed lines

@@ -47,7 +47,7 @@ 
      * Deletes all survey invitations of a user
      * @param int $user_id
      *
-     * @return boolean
+     * @return false|null
      * @assert ('') === false
      */
     public static function delete_all_survey_invitations_by_user($user_id)
@@ -104,7 +104,7 @@ 
      * Retrieves all the survey information
      *
      * @param integer $survey_id the id of the survey
-     * @param boolean $shared this parameter determines if
+     * @param integer $shared this parameter determines if
      * we have to get the information of a survey from the central (shared) database or from the
      * 		  course database
      * @param string course code optional
@@ -571,7 +571,7 @@ 
      * This function deletes a survey (and also all the question in that survey
      *
      * @param int $survey_id id of the survey that has to be deleted
-     * @return true
+     * @return boolean
      *
      * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
      * @version January 2007
@@ -756,7 +756,7 @@ 
      *
      * @param int $survey_id id of the survey that has to be duplicated
      * @param int $courseId id of the course which survey has to be duplicated
-     * @return true
+     * @return boolean
      *
      * @author Eric Marguin <e.marguin@elixir-interactive.com>, Elixir Interactive
      * @version October 2007
@@ -796,7 +796,7 @@ 
     /**
      * This function recalculates the number of people who have taken the survey (=filled at least one question)
      *
-     * @param int $survey_id the id of the survey somebody
+     * @param int $survey_data the id of the survey somebody
      * @return true
      *
      * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
@@ -1367,7 +1367,7 @@ 
      * This function deletes a shared survey question from the main database and all its options
      *
      * @param int $question_id the id of the question
-     * @param int $shared
+     * @param integer $survey_id
      *
      * @todo delete all the options of this question
      *
@@ -1494,8 +1494,8 @@ 
      * This function deletes all the options of the questions of a given survey
      * This function is normally only called when a survey is deleted
      *
-     * @param $survey_id the id of the survey that has to be deleted
-     * @return true
+     * @param integer $survey_id the id of the survey that has to be deleted
+     * @return boolean
      *
      * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
      * @version January 2007
@@ -1561,8 +1561,8 @@ 
      * This function deletes all the answers anyone has given on this survey
      * This function is normally only called when a survey is deleted
      *
-     * @param $survey_id the id of the survey that has to be deleted
-     * @return true
+     * @param integer $survey_id the id of the survey that has to be deleted
+     * @return boolean
      *
      * @todo write the function
      *
@@ -1804,7 +1804,7 @@ 
     /**
      * This function checks the parameters that are used in this page
      *
-     * @return 	string 	The header, an error and the footer if any parameter fails, else it returns true
+     * @return 	null|boolean 	The header, an error and the footer if any parameter fails, else it returns true
      * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
      * @version February 2007
      */
@@ -2371,6 +2371,7 @@ 
      * Display score data about a survey question
      * @param	array	Question info
      * @param	integer	The offset of results shown
+     * @param integer $offset
      * @return	void 	(direct output)
      */
     public static function display_question_report_score($survey_data, $question, $offset)
@@ -3208,7 +3209,7 @@ 
      * @param	array	User's answers
      * @param 	mixed	User ID or user details as string - Used as a string in the result string
      * @param	boolean	Whether to display user fields or not
-     * @return	string	One line of the csv file
+     * @return	string[]	One line of the csv file
      */
     public static function export_complete_report_row_xls(
         $survey_data,
@@ -3801,7 +3802,7 @@ 
 
     /**
      * @param $params
-     * @return bool|int
+     * @return false|string
      */
     public static function save_invitation($params)
     {
@@ -3855,6 +3856,7 @@ 
      *
      * @param int invitedUser - the userId (course user) or emailaddress of additional user
      * $param string $invitation_code - the unique invitation code for the URL
+     * @param string|null $invitation_text
      * @return	void
      */
     public static function send_invitation_mail($invitedUser, $invitation_code, $invitation_title, $invitation_text)
@@ -4783,7 +4785,7 @@ 
     /**
      * @author Isaac Flores Paz <florespaz@bidsoftperu.com>
      * @param int $user_id - User ID
-     * @param int $user_id_answer - User in survey answer table (user id or anonymus)
+     * @param int $user_answer - User in survey answer table (user id or anonymus)
      * @return boolean
      */
     static function show_link_available($user_id, $survey_code, $user_answer)
@@ -4829,7 +4831,7 @@ 
      * Display survey question chart
      * @param	array	Chart data
      * @param	boolean	Tells if the chart has a serie. False by default
-     * @return	void 	(direct output)
+     * @return	string 	(direct output)
      */
     public static function drawChart($chartData, $hasSerie = false, $chartContainerId = 'chartContainer')
     {

Spacing +175 added lines, -176 removed lines

@@ -35,7 +35,7 @@ 
             $result = Database::query($sql);
             if (Database::num_rows($result)) {
                 $num++;
-                $new_code = $code . $num;
+                $new_code = $code.$num;
             } else {
                 break;
             }
@@ -63,7 +63,7 @@ 
         $sql = "SELECT survey_invitation_id, survey_code
                 FROM $table_survey_invitation WHERE user = '$user_id' AND c_id <> 0 ";
         $result = Database::query($sql);
-        while ($row = Database::fetch_array($result ,'ASSOC')){
+        while ($row = Database::fetch_array($result, 'ASSOC')) {
             $survey_invitation_id = $row['survey_invitation_id'];
             $survey_code = $row['survey_code'];
             $sql2 = "DELETE FROM $table_survey_invitation
@@ -129,7 +129,7 @@ 
         $table_survey = Database :: get_course_table(TABLE_SURVEY);
 
         if ($shared != 0) {
-            $table_survey	= Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
+            $table_survey = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
             $sql = "SELECT * FROM $table_survey
                     WHERE survey_id='".intval($survey_id)."' ";
         } else {
@@ -142,8 +142,8 @@ 
         $result = Database::query($sql);
         $return = array();
 
-        if (Database::num_rows($result)> 0) {
-            $return = Database::fetch_array($result,'ASSOC');
+        if (Database::num_rows($result) > 0) {
+            $return = Database::fetch_array($result, 'ASSOC');
             if ($simple_return) {
                 return $return;
             }
@@ -187,7 +187,7 @@ 
         $course_id = api_get_course_int_id();
         $session_id = api_get_session_id();
         $courseCode = api_get_course_id();
-        $table_survey 	= Database :: get_course_table(TABLE_SURVEY);
+        $table_survey = Database :: get_course_table(TABLE_SURVEY);
         $shared_survey_id = 0;
 
         if (!isset($values['survey_id'])) {
@@ -233,7 +233,7 @@ 
                             if ($values[$field] == '') {
                                 $values[$field] = 0;
                             }
-                            $field_values.= $field.':'.$values[$field].'@';
+                            $field_values .= $field.':'.$values[$field].'@';
                         }
                     }
                     $extraParams['form_fields'] = $field_values;
@@ -385,7 +385,7 @@ 
             if ($values['anonymous'] == 0) {
                 $extraParams['show_form_profile'] = $values['show_form_profile'];
                 if ($values['show_form_profile'] == 1) {
-                    $fields = explode(',',$values['input_name_list']);
+                    $fields = explode(',', $values['input_name_list']);
                     $field_values = '';
                     foreach ($fields as &$field) {
                         if ($field != '') {
@@ -394,7 +394,7 @@ 
                             ) {
                                 $values[$field] = 0;
                             }
-                            $field_values.= $field.':'.$values[$field].'@';
+                            $field_values .= $field.':'.$values[$field].'@';
                         }
                     }
                     $extraParams['form_fields'] = $field_values;
@@ -526,7 +526,7 @@ 
         $_course = api_get_course_info();
 
         // Table definitions
-        $table_survey	= Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY);
+        $table_survey = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY);
 
         if (!$values['survey_id'] ||
             !is_numeric($values['survey_id']) ||
@@ -544,7 +544,7 @@ 
                     '".api_get_utc_datetime()."',
                     '".$_course['id']."')";
             Database::query($sql);
-            $return	= Database::insert_id();
+            $return = Database::insert_id();
 
             $sql = "UPDATE $table_survey SET survey_id = $return WHERE iid = $return";
             Database::query($sql);
@@ -561,7 +561,7 @@ 
                         surveythanks	= '".Database::escape_string($values['survey_thanks'])."'
 					WHERE survey_id = '".Database::escape_string($values['survey_share']['survey_share'])."'";
             Database::query($sql);
-            $return	= $values['survey_share']['survey_share'];
+            $return = $values['survey_share']['survey_share'];
         }
 
         return $return;
@@ -659,7 +659,7 @@ 
             $params['c_id'] = $targetCourseId;
             unset($params['survey_id']);
             $params['session_id'] = api_get_session_id();
-            $params['title'] = $params['title'] . ' ' . get_lang('Copy');
+            $params['title'] = $params['title'].' '.get_lang('Copy');
             unset($params['iid']);
             Database::insert($table_survey, $params);
             $new_survey_id = Database::insert_id();
@@ -685,7 +685,7 @@ 
         $sql = "SELECT * FROM $table_survey_question_group
                 WHERE c_id = $course_id AND  survey_id='".$survey_id."'";
         $res = Database::query($sql);
-        while($row = Database::fetch_array($res, 'ASSOC')) {
+        while ($row = Database::fetch_array($res, 'ASSOC')) {
             $params = array(
                 'c_id' =>  $targetCourseId,
                 'name' => $row['name'],
@@ -732,7 +732,7 @@ 
                 WHERE c_id = $course_id AND survey_id='".$survey_id."'";
 
         $res = Database::query($sql);
-        while ($row = Database::fetch_array($res ,'ASSOC')) {
+        while ($row = Database::fetch_array($res, 'ASSOC')) {
             $params = array(
                 'c_id' =>  $targetCourseId,
                 'question_id' => $question_id[$row['question_id']],
@@ -897,7 +897,7 @@ 
     {
         // Table definitions
         $tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
-        $table_survey_question_option 	= Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
+        $table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
         $course_id = api_get_course_int_id();
 
         $sql = "SELECT * FROM $tbl_survey_question
@@ -923,7 +923,7 @@ 
         // Getting the information of the question
 
         $result = Database::query($sql);
-        $row = Database::fetch_array($result,'ASSOC');
+        $row = Database::fetch_array($result, 'ASSOC');
 
         $return['survey_id'] = $row['survey_id'];
         $return['question_id'] = $row['question_id'];
@@ -971,8 +971,8 @@ 
     public static function get_questions($survey_id, $course_id = '')
     {
         // Table definitions
-        $tbl_survey_question 			= Database :: get_course_table(TABLE_SURVEY_QUESTION);
-        $table_survey_question_option 	= Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
+        $tbl_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
 
         if (empty($course_id)) {
             $course_id = api_get_course_int_id();
@@ -1076,7 +1076,7 @@ 
 					        FROM $tbl_survey_question
                             WHERE c_id = $course_id AND survey_id='".intval($form_content['survey_id'])."'";
                     $result = Database::query($sql);
-                    $row = Database::fetch_array($result,'ASSOC');
+                    $row = Database::fetch_array($result, 'ASSOC');
                     $max_sort = $row['max_sort'];
 
                     // Some variables defined for survey-test type
@@ -1213,7 +1213,7 @@ 
                     WHERE survey_id='".intval($survey_data['survey_share'])."'
                     AND code='".Database::escape_string($_course['id'])."'";
             $result = Database::query($sql);
-            $row = Database::fetch_array($result,'ASSOC');
+            $row = Database::fetch_array($result, 'ASSOC');
             $max_sort = $row['max_sort'];
 
             // Adding the question to the survey_question table
@@ -1223,11 +1223,11 @@ 
                     '".Database::escape_string($form_content['question_comment'])."',
                     '".Database::escape_string($form_content['type'])."',
                     '".Database::escape_string($form_content['horizontalvertical'])."',
-                    '".Database::escape_string($max_sort+1)."',
+                    '".Database::escape_string($max_sort + 1)."',
                     '".Database::escape_string($_course['id'])."')";
             Database::query($sql);
             $shared_question_id = Database::insert_id();
-        }  else {
+        } else {
             // Updating an existing question
             // adding the question to the survey_question table
             $sql = "UPDATE $tbl_survey_question SET
@@ -1257,7 +1257,7 @@ 
     public static function move_survey_question($direction, $survey_question_id, $survey_id)
     {
         // Table definition
-        $table_survey_question 	= Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
         $course_id = api_get_course_int_id();
 
         if ($direction == 'moveup') {
@@ -1309,11 +1309,11 @@ 
         $course_id = api_get_course_int_id();
 
         // Table definitions
-        $table_survey_question 	= Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
         $course_condition = " c_id = $course_id AND ";
         if ($shared) {
             $course_condition = "";
-            $table_survey_question 	= Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
+            $table_survey_question = Database :: get_main_table(TABLE_MAIN_SHARED_SURVEY_QUESTION);
         }
 
         $sql = "DELETE FROM $table_survey_question
@@ -1346,7 +1346,7 @@ 
     {
         $course_id = api_get_course_int_id();
         // Table definitions
-        $table_survey_question 	= Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
         if ($shared) {
             SurveyManager::delete_shared_survey_question($survey_id, $question_id);
         }
@@ -1408,7 +1408,7 @@ 
         $course_id = api_get_course_int_id();
         // A percentage question type has options 1 -> 100
         if ($form_content['type'] == 'percentage') {
-            for($i = 1; $i < 101; $i++) {
+            for ($i = 1; $i < 101; $i++) {
                 $form_content['answers'][] = $i;
             }
         }
@@ -1588,7 +1588,7 @@ 
     {
         $table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
 
-        $user_id	= intval($user_id);
+        $user_id = intval($user_id);
         $course_id	= intval($course_id);
         $survey_id	= intval($survey_id);
 
@@ -1746,7 +1746,7 @@ 
     static function remove_answer($user, $survey_id, $question_id, $course_id) {
         $course_id = intval($course_id);
         // table definition
-        $table_survey_answer 		= Database :: get_course_table(TABLE_SURVEY_ANSWER);
+        $table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
         $sql = "DELETE FROM $table_survey_answer
 				WHERE
 				    c_id = $course_id AND
@@ -1919,16 +1919,16 @@ 
      */
     function delete_user_report($survey_id, $user_id)
     {
-        $table_survey_answer 		= Database :: get_course_table(TABLE_SURVEY_ANSWER);
-        $table_survey_invitation 	= Database :: get_course_table(TABLE_SURVEY_INVITATION);
-        $table_survey 				= Database :: get_course_table(TABLE_SURVEY);
+        $table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
+        $table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
+        $table_survey = Database :: get_course_table(TABLE_SURVEY);
 
         $course_id = api_get_course_int_id();
 
         if (!empty($survey_id) && !empty($user_id)) {
             // delete data from survey_answer by user_id and survey_id
             $sql = "DELETE FROM $table_survey_answer
-			        WHERE c_id = $course_id AND survey_id = '".(int)$survey_id."' AND user = '".(int)$user_id."'";
+			        WHERE c_id = $course_id AND survey_id = '".(int) $survey_id."' AND user = '".(int) $user_id."'";
             Database::query($sql);
             // update field answered from survey_invitation by user_id and survey_id
             $sql = "UPDATE $table_survey_invitation SET answered = '0'
@@ -1938,9 +1938,9 @@ 
                             SELECT code FROM $table_survey
                             WHERE
                                 c_id = $course_id AND
-                                survey_id = '".(int)$survey_id."'
+                                survey_id = '".(int) $survey_id."'
                         ) AND
-			            user = '".(int)$user_id."'";
+			            user = '".(int) $user_id."'";
             $result = Database::query($sql);
         }
 
@@ -1970,19 +1970,19 @@ 
         // Actions bar
         echo '<div class="actions">';
         echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'">'.
-            Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'), '', ICON_SIZE_MEDIUM).'</a>';
         if (isset($_GET['user'])) {
             if (api_is_allowed_to_edit()) {
                 // The delete link
                 echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=deleteuserreport&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.Security::remove_XSS($_GET['user']).'" >'.
-                    Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_MEDIUM).'</a>';
+                    Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_MEDIUM).'</a>';
             }
 
             // Export the user report
             echo '<a href="javascript: void(0);" onclick="document.form1a.submit();">'.
-                Display::return_icon('export_csv.png', get_lang('ExportAsCSV'),'',ICON_SIZE_MEDIUM).'</a> ';
+                Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '', ICON_SIZE_MEDIUM).'</a> ';
             echo '<a href="javascript: void(0);" onclick="document.form1b.submit();">'.
-                Display::return_icon('export_excel.png', get_lang('ExportAsXLS'),'',ICON_SIZE_MEDIUM).'</a> ';
+                Display::return_icon('export_excel.png', get_lang('ExportAsXLS'), '', ICON_SIZE_MEDIUM).'</a> ';
             echo '<form id="form1a" name="form1a" method="post" action="'.api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user_id='.Security::remove_XSS($_GET['user']).'">';
             echo '<input type="hidden" name="export_report" value="export_report">';
             echo '<input type="hidden" name="export_format" value="csv">';
@@ -2015,7 +2015,7 @@ 
                     $name = $person['invited_user'];
                 }
             } else {
-                $name  = get_lang('Anonymous') . ' ' . ($key + 1);
+                $name = get_lang('Anonymous').' '.($key + 1);
                 $id = $person;
             }
             echo '<option value="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.Security::remove_XSS($_GET['action']).'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&user='.Security::remove_XSS($id).'" ';
@@ -2145,9 +2145,9 @@ 
         $singlePage = isset($_GET['single_page']) ? intval($_GET['single_page']) : 0;
         $course_id = api_get_course_int_id();
         // Database table definitions
-        $table_survey_question 			= Database :: get_course_table(TABLE_SURVEY_QUESTION);
-        $table_survey_question_option 	= Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
-        $table_survey_answer 			= Database :: get_course_table(TABLE_SURVEY_ANSWER);
+        $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
+        $table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
 
         // Determining the offset of the sql statement (the n-th question of the survey)
         $offset = !isset($_GET['question']) ? 0 : intval($_GET['question']);
@@ -2158,7 +2158,7 @@ 
 
         echo '<div class="actions">';
         echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?survey_id='.$surveyId.'">'.
-            Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '</div>';
 
         if ($survey_data['number_of_questions'] > 0) {
@@ -2168,21 +2168,21 @@ 
                 /* echo '<ul><li class="disabled"><a href="#">'.get_lang('Question').'</a></li>'; */
 
                 if ($currentQuestion != 0) {
-                    echo '<li><a href="' . api_get_path(WEB_CODE_PATH) . 'survey/reporting.php?action=' . $action . '&' . api_get_cidreq() . '&survey_id=' . $surveyId . '&question=' . ($offset - 1) . '">' . get_lang('PreviousQuestion') . '</a></li>';
+                    echo '<li><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.$action.'&'.api_get_cidreq().'&survey_id='.$surveyId.'&question='.($offset - 1).'">'.get_lang('PreviousQuestion').'</a></li>';
                 }
 
                 for ($i = 1; $i <= $survey_data['number_of_questions']; $i++) {
                     if ($offset != $i - 1) {
-                        echo '<li><a href="' . api_get_path(WEB_CODE_PATH) . 'survey/reporting.php?action=' . $action . '&' . api_get_cidreq() . '&survey_id=' . $surveyId . '&question=' . ($i - 1) . '">' . $i . '</a></li>';
+                        echo '<li><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.$action.'&'.api_get_cidreq().'&survey_id='.$surveyId.'&question='.($i - 1).'">'.$i.'</a></li>';
                     } else {
-                        echo '<li class="disabled"s><a href="#">' . $i . '</a></li>';
+                        echo '<li class="disabled"s><a href="#">'.$i.'</a></li>';
                     }
                     /*if ($i < $survey_data['number_of_questions']) {
                         echo ' | ';
                     }*/
                 }
                 if ($currentQuestion < ($survey_data['number_of_questions'] - 1)) {
-                    echo '<li><a href="' . api_get_path(WEB_CODE_PATH) . 'survey/reporting.php?action=' . $action . '&' . api_get_cidreq() . '&survey_id=' . $surveyId . '&question=' . ($offset + 1) . '">' . get_lang('NextQuestion') . '</li></a>';
+                    echo '<li><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.$action.'&'.api_get_cidreq().'&survey_id='.$surveyId.'&question='.($offset + 1).'">'.get_lang('NextQuestion').'</li></a>';
                 }
                 echo '</ul>';
                 echo '</div>';
@@ -2234,19 +2234,19 @@ 
                 $sql = "SELECT * FROM $table_survey_answer
                         WHERE
                             c_id = $course_id AND
-                            survey_id='" . intval($_GET['survey_id']) . "' AND
-                            question_id = '" . intval($question['question_id']) . "'";
+                            survey_id='".intval($_GET['survey_id'])."' AND
+                            question_id = '" . intval($question['question_id'])."'";
                 $result = Database::query($sql);
                 while ($row = Database::fetch_array($result)) {
-                    echo $row['option_id'] . '<hr noshade="noshade" size="1" />';
+                    echo $row['option_id'].'<hr noshade="noshade" size="1" />';
                 }
             } else {
                 // Getting the options ORDER BY sort ASC
                 $sql = "SELECT * FROM $table_survey_question_option
                         WHERE
                             c_id = $course_id AND
-                            survey_id='" . intval($_GET['survey_id']) . "'
-                            AND question_id = '" . intval($question['question_id']) . "'
+                            survey_id='".intval($_GET['survey_id'])."'
+                            AND question_id = '" . intval($question['question_id'])."'
                         ORDER BY sort ASC";
                 $result = Database::query($sql);
                 while ($row = Database::fetch_array($result)) {
@@ -2256,8 +2256,8 @@ 
                 $sql = "SELECT *, count(answer_id) as total FROM $table_survey_answer
                         WHERE
                             c_id = $course_id AND
-                            survey_id='" . intval($_GET['survey_id']) . "'
-                            AND question_id = '" . intval($question['question_id']) . "'
+                            survey_id='".intval($_GET['survey_id'])."'
+                            AND question_id = '" . intval($question['question_id'])."'
                         GROUP BY option_id, value";
                 $result = Database::query($sql);
                 $number_of_answers = array();
@@ -2274,8 +2274,7 @@ 
                     $optionText = strip_tags($option['option_text']);
                     $optionText = html_entity_decode($optionText);
                     $votes = isset($data[$option['question_option_id']]['total']) ?
-                        $data[$option['question_option_id']]['total'] :
-                        '0';
+                        $data[$option['question_option_id']]['total'] : '0';
                     array_push($chartData, array('option' => $optionText, 'votes' => $votes));
                 }
                 $chartContainerId = 'chartContainer'.$question['question_id'];
@@ -2287,9 +2286,9 @@ 
                 echo '<table class="display-survey table">';
                 echo '	<tr>';
                 echo '		<th>&nbsp;</th>';
-                echo '		<th>' . get_lang('AbsoluteTotal') . '</th>';
-                echo '		<th>' . get_lang('Percentage') . '</th>';
-                echo '		<th>' . get_lang('VisualRepresentation') . '</th>';
+                echo '		<th>'.get_lang('AbsoluteTotal').'</th>';
+                echo '		<th>'.get_lang('Percentage').'</th>';
+                echo '		<th>'.get_lang('VisualRepresentation').'</th>';
                 echo '	<tr>';
 
                 // Displaying the table: the content
@@ -2308,22 +2307,22 @@ 
                             $answers_number = $absolute_number / $number_of_answers[$option['question_id']] * 100;
                         }
                         echo '	<tr>';
-                        echo '		<td class="center">' . $value['option_text'] . '</td>';
+                        echo '		<td class="center">'.$value['option_text'].'</td>';
                         echo '		<td class="center">';
                         if ($absolute_number != 0) {
-                            echo '<a href="' . api_get_path(WEB_CODE_PATH) . 'survey/reporting.php?action=' . $action . '&survey_id=' . $surveyId . '&question=' . $offset . '&viewoption=' . $value['question_option_id'] . '">' . $absolute_number . '</a>';
+                            echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.$action.'&survey_id='.$surveyId.'&question='.$offset.'&viewoption='.$value['question_option_id'].'">'.$absolute_number.'</a>';
                         } else {
                             echo '0';
                         }
 
                         echo '      </td>';
-                        echo '		<td class="center">' . round($answers_number, 2) . ' %</td>';
+                        echo '		<td class="center">'.round($answers_number, 2).' %</td>';
                         echo '		<td class="center">';
                         $size = $answers_number * 2;
                         if ($size > 0) {
-                            echo '<div style="border:1px solid #264269; background-color:#aecaf4; height:10px; width:' . $size . 'px">&nbsp;</div>';
+                            echo '<div style="border:1px solid #264269; background-color:#aecaf4; height:10px; width:'.$size.'px">&nbsp;</div>';
                         } else {
-                            echo '<div style="text-align: left;">' . get_lang("NoDataAvailable") . '</div>';
+                            echo '<div style="text-align: left;">'.get_lang("NoDataAvailable").'</div>';
                         }
                         echo ' </td>';
                         echo ' </tr>';
@@ -2331,8 +2330,8 @@ 
                 }
                 // displaying the table: footer (totals)
                 echo '	<tr>';
-                echo '		<td class="total"><b>' . get_lang('Total') . '</b></td>';
-                echo '		<td class="total"><b>' . ($number_of_answers[$option['question_id']] == 0 ? '0' : $number_of_answers[$option['question_id']]) . '</b></td>';
+                echo '		<td class="total"><b>'.get_lang('Total').'</b></td>';
+                echo '		<td class="total"><b>'.($number_of_answers[$option['question_id']] == 0 ? '0' : $number_of_answers[$option['question_id']]).'</b></td>';
                 echo '		<td class="total">&nbsp;</td>';
                 echo '		<td class="total">&nbsp;</td>';
                 echo '	</tr>';
@@ -2376,8 +2375,8 @@ 
     public static function display_question_report_score($survey_data, $question, $offset)
     {
         // Database table definitions
-        $table_survey_question_option 	= Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
-        $table_survey_answer 			= Database :: get_course_table(TABLE_SURVEY_ANSWER);
+        $table_survey_question_option = Database :: get_course_table(TABLE_SURVEY_QUESTION_OPTION);
+        $table_survey_answer = Database :: get_course_table(TABLE_SURVEY_ANSWER);
 
         $course_id = api_get_course_int_id();
 
@@ -2447,9 +2446,9 @@ 
                 echo '		<td>'.$value['option_text'].'</td>';
                 echo '		<td>'.$i.'</td>';
                 echo '		<td><a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action='.$action.'&survey_id='.Security::remove_XSS($_GET['survey_id']).'&question='.Security::remove_XSS($offset).'&viewoption='.$value['question_option_id'].'&value='.$i.'">'.$absolute_number.'</a></td>';
-                echo '		<td>'.round($absolute_number/$number_of_answers*100, 2).' %</td>';
+                echo '		<td>'.round($absolute_number / $number_of_answers * 100, 2).' %</td>';
                 echo '		<td>';
-                $size = ($absolute_number/$number_of_answers*100*2);
+                $size = ($absolute_number / $number_of_answers * 100 * 2);
                 if ($size > 0) {
                     echo '			<div style="border:1px solid #264269; background-color:#aecaf4; height:10px; width:'.$size.'px">&nbsp;</div>';
                 }
@@ -2486,11 +2485,11 @@ 
         // Actions bar
         echo '<div class="actions">';
         echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?survey_id='.Security::remove_XSS($_GET['survey_id']).'">
-		'.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+		'.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '<a class="survey_export_link" href="javascript: void(0);" onclick="document.form1a.submit();">
-		'.Display::return_icon('export_csv.png',get_lang('ExportAsCSV'),'',ICON_SIZE_MEDIUM).'</a>';
+		'.Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '<a class="survey_export_link" href="javascript: void(0);" onclick="document.form1b.submit();">
-		'.Display::return_icon('export_excel.png',get_lang('ExportAsXLS'),'',ICON_SIZE_MEDIUM).'</a>';
+		'.Display::return_icon('export_excel.png', get_lang('ExportAsXLS'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '</div>';
 
         // The form
@@ -2523,8 +2522,8 @@ 
             // Show user fields section with a big th colspan that spans over all fields
             $extra_user_fields = UserManager::get_extra_fields(0, 0, 5, 'ASC', false, true);
             $num = count($extra_user_fields);
-            if ($num > 0 ) {
-                echo '<th '.($num>0?' colspan="'.$num.'"':'').'>';
+            if ($num > 0) {
+                echo '<th '.($num > 0 ? ' colspan="'.$num.'"' : '').'>';
                 echo '<label><input type="checkbox" name="fields_filter" value="1" checked="checked"/> ';
                 echo get_lang('UserFields');
                 echo '</label>';
@@ -2589,7 +2588,7 @@ 
         if (!(isset($_POST['submit_question_filter']) && $_POST['submit_question_filter'] ||
                 isset($_POST['export_report']) && $_POST['export_report']) || !empty($_POST['fields_filter'])) {
             //show the fields names for user fields
-            foreach($extra_user_fields as & $field) {
+            foreach ($extra_user_fields as & $field) {
                 echo '<th>'.$field[3].'</th>';
             }
         }
@@ -2609,7 +2608,7 @@ 
 				ORDER BY sq.sort ASC, sqo.sort ASC";
         $result = Database::query($sql);
 
-        $display_percentage_header = 1;	// in order to display only once the cell option (and not 100 times)
+        $display_percentage_header = 1; // in order to display only once the cell option (and not 100 times)
         while ($row = Database::fetch_array($result)) {
             // We show the options if
             // 1. there is no question filter and the export button has not been clicked
@@ -2669,7 +2668,7 @@ 
                     $questions,
                     $display_extra_user_fields
                 );
-                $answers_of_user=array();
+                $answers_of_user = array();
             }
             if (isset($questions[$row['question_id']]) && $questions[$row['question_id']]['type'] != 'open') {
                 $answers_of_user[$row['question_id']][$row['option_id']] = $row;
@@ -2731,7 +2730,7 @@ 
                 echo '<th>'.$user.'</th>'; // the user column
             }
         } else {
-            echo '<th>' . get_lang('Anonymous') . ' ' . $user . '</th>';
+            echo '<th>'.get_lang('Anonymous').' '.$user.'</th>';
         }
 
         if ($display_extra_user_fields) {
@@ -2827,10 +2826,10 @@ 
                 // We do not show comment and pagebreak question types
                 if ($row['type'] != 'comment' && $row['type'] != 'pagebreak') {
                     if ($row['number_of_options'] == 0 && $row['type'] == 'open') {
-                        $return .= str_replace("\r\n",'  ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
+                        $return .= str_replace("\r\n", '  ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
                     } else {
                         for ($ii = 0; $ii < $row['number_of_options']; $ii++) {
-                            $return .= str_replace("\r\n",'  ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
+                            $return .= str_replace("\r\n", '  ', api_html_entity_decode(strip_tags($row['survey_question']), ENT_QUOTES)).';';
                         }
                     }
                 }
@@ -2844,7 +2843,7 @@ 
         // Show the fields names for user fields
         if (!empty($extra_user_fields)) {
             foreach ($extra_user_fields as & $field) {
-                $return .= '"'.str_replace("\r\n",'  ',api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES)).'";';
+                $return .= '"'.str_replace("\r\n", '  ', api_html_entity_decode(strip_tags($field[3]), ENT_QUOTES)).'";';
             }
         }
 
@@ -2879,7 +2878,7 @@ 
             ) {
                 // We do not show comment and pagebreak question types
                 if ($row['type'] != 'comment' && $row['type'] != 'pagebreak') {
-                    $row['option_text'] = str_replace(array("\r","\n"),array('',''),$row['option_text']);
+                    $row['option_text'] = str_replace(array("\r", "\n"), array('', ''), $row['option_text']);
                     $return .= api_html_entity_decode(strip_tags($row['option_text']), ENT_QUOTES).';';
                     $possible_answers[$row['question_id']][$row['question_option_id']] = $row['question_option_id'];
                     $possible_answers_type[$row['question_id']] = $row['type'];
@@ -2909,9 +2908,9 @@ 
                     $old_user,
                     true
                 );
-                $answers_of_user=array();
+                $answers_of_user = array();
             }
-            if($possible_answers_type[$row['question_id']] == 'open') {
+            if ($possible_answers_type[$row['question_id']] == 'open') {
                 $temp_id = 'open'.$open_question_iterator;
                 $answers_of_user[$row['question_id']][$temp_id] = $row;
                 $open_question_iterator++;
@@ -2970,7 +2969,7 @@ 
 
         if ($display_extra_user_fields) {
             // Show user fields data, if any, for this user
-            $user_fields_values = UserManager::get_extra_user_data($user,false,false, false, true);
+            $user_fields_values = UserManager::get_extra_user_data($user, false, false, false, true);
             foreach ($user_fields_values as & $value) {
                 $return .= '"'.str_replace('"', '""', api_html_entity_decode(strip_tags($value), ENT_QUOTES)).'";';
             }
@@ -3069,9 +3068,9 @@ 
                                 ENT_QUOTES
                             )
                         );
-                        $column ++;
+                        $column++;
                     } else {
-                        for ($ii = 0; $ii < $row['number_of_options']; $ii ++) {
+                        for ($ii = 0; $ii < $row['number_of_options']; $ii++) {
                             $worksheet->SetCellValueByColumnAndRow(
                                 $line,
                                 $column,
@@ -3080,7 +3079,7 @@ 
                                     ENT_QUOTES
                                 )
                             );
-                            $column ++;
+                            $column++;
                         }
                     }
                 }
@@ -3140,7 +3139,7 @@ 
         }
 
         // Getting all the answers of the users
-        $line ++;
+        $line++;
         $column = 0;
         $old_user = '';
         $answers_of_user = array();
@@ -3149,7 +3148,7 @@ 
         if ($user_id != 0) {
             $sql .= "AND user='".intval($user_id)."' ";
         }
-        $sql .=	"ORDER BY user ASC";
+        $sql .= "ORDER BY user ASC";
 
         $open_question_iterator = 1;
         $result = Database::query($sql);
@@ -3224,7 +3223,7 @@ 
                         FROM '.Database::get_main_table(TABLE_MAIN_USER).'
                         WHERE user_id='.intval($user);
                 $rs = Database::query($sql);
-                if($row = Database::fetch_array($rs)) {
+                if ($row = Database::fetch_array($rs)) {
                     $user_displayed = api_get_person_name($row['firstname'], $row['lastname']);
                 } else {
                     $user_displayed = '-';
@@ -3239,8 +3238,8 @@ 
 
         if ($display_extra_user_fields) {
             //show user fields data, if any, for this user
-            $user_fields_values = UserManager::get_extra_user_data(intval($user),false,false, false, true);
-            foreach($user_fields_values as $value) {
+            $user_fields_values = UserManager::get_extra_user_data(intval($user), false, false, false, true);
+            foreach ($user_fields_values as $value) {
                 $return[] = api_html_entity_decode(strip_tags($value), ENT_QUOTES);
             }
         }
@@ -3249,7 +3248,7 @@ 
             foreach ($possible_options as $question_id => & $possible_option) {
                 if (is_array($possible_option) && count($possible_option) > 0) {
                     foreach ($possible_option as $option_id => & $value) {
-                        $my_answers_of_user = ($answers_of_user[$question_id]==null) ? array() : $answers_of_user[$question_id];
+                        $my_answers_of_user = ($answers_of_user[$question_id] == null) ? array() : $answers_of_user[$question_id];
                         $key = array_keys($my_answers_of_user);
                         if (substr($key[0], 0, 4) == 'open') {
                             $return[] = api_html_entity_decode(strip_tags($answers_of_user[$question_id][$key[0]]['option_id']), ENT_QUOTES);
@@ -3299,7 +3298,7 @@ 
         // Actions bar
         echo '<div class="actions">';
         echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?survey_id='.intval($_GET['survey_id']).'">'.
-                Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'),'',ICON_SIZE_MEDIUM).'</a>';
+                Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('ReportingOverview'), '', ICON_SIZE_MEDIUM).'</a>';
         echo '</div>';
 
         // Displaying an information message that only the questions with predefined answers can be used in a comparative report
@@ -3364,25 +3363,25 @@ 
 
             $xOptions = array();
             // The header
-            $tableHtml .=  '	<tr>';
+            $tableHtml .= '	<tr>';
             for ($ii = 0; $ii <= count($question_x['answers']); $ii++) {
                 if ($ii == 0) {
-                    $tableHtml .=  '		<th>&nbsp;</th>';
+                    $tableHtml .= '		<th>&nbsp;</th>';
                 } else {
                     if ($question_x['type'] == 'score') {
                         for ($x = 1; $x <= $question_x['maximum_score']; $x++) {
-                            $tableHtml .= '		<th>'.$question_x['answers'][($ii-1)].'<br />'.$x.'</th>';
+                            $tableHtml .= '		<th>'.$question_x['answers'][($ii - 1)].'<br />'.$x.'</th>';
                         }
                         $x = '';
                     } else {
-                        $tableHtml .= '		<th>'.$question_x['answers'][($ii-1)].'</th>';
+                        $tableHtml .= '		<th>'.$question_x['answers'][($ii - 1)].'</th>';
                     }
-                    $optionText = strip_tags($question_x['answers'][$ii-1]);
+                    $optionText = strip_tags($question_x['answers'][$ii - 1]);
                     $optionText = html_entity_decode($optionText);
                     array_push($xOptions, trim($optionText));
                 }
             }
-            $tableHtml .=  '	</tr>';
+            $tableHtml .= '	</tr>';
             $chartData = array();
 
             // The main part
@@ -3392,15 +3391,15 @@ 
                 // The Y axis is a scoring question type so we have more rows than the options (actually options * maximum score)
                 if ($question_y['type'] == 'score') {
                     for ($y = 1; $y <= $question_y['maximum_score']; $y++) {
-                        $tableHtml .=  '	<tr>';
+                        $tableHtml .= '	<tr>';
                         for ($ii = 0; $ii <= count($question_x['answers']); $ii++) {
                             if ($question_x['type'] == 'score') {
                                 for ($x = 1; $x <= $question_x['maximum_score']; $x++) {
                                     if ($ii == 0) {
-                                        $tableHtml .=  ' <th>'.$question_y['answers'][($ij)].' '.$y.'</th>';
+                                        $tableHtml .= ' <th>'.$question_y['answers'][($ij)].' '.$y.'</th>';
                                         break;
                                     } else {
-                                        $tableHtml .=  ' <td align="center">';
+                                        $tableHtml .= ' <td align="center">';
                                         $votes = SurveyUtil::comparative_check(
                                             $answers_x,
                                             $answers_y,
@@ -3409,23 +3408,23 @@ 
                                             $x,
                                             $y
                                         );
-                                        $tableHtml .=  $votes;
+                                        $tableHtml .= $votes;
                                         array_push(
                                             $chartData,
                                             array(
-                                                'serie' => array($currentYQuestion, $xOptions[$ii-1]),
+                                                'serie' => array($currentYQuestion, $xOptions[$ii - 1]),
                                                 'option' => $x,
                                                 'votes' => $votes
                                             )
                                         );
-                                        $tableHtml .=  '</td>';
+                                        $tableHtml .= '</td>';
                                     }
                                 }
                             } else {
                                 if ($ii == 0) {
-                                    $tableHtml .=  '<th>'.$question_y['answers'][$ij].' '.$y.'</th>';
+                                    $tableHtml .= '<th>'.$question_y['answers'][$ij].' '.$y.'</th>';
                                 } else {
-                                    $tableHtml .=  '<td align="center">';
+                                    $tableHtml .= '<td align="center">';
                                     $votes = SurveyUtil::comparative_check(
                                         $answers_x,
                                         $answers_y,
@@ -3438,65 +3437,65 @@ 
                                     array_push(
                                         $chartData,
                                         array(
-                                            'serie' => array($currentYQuestion, $xOptions[$ii-1]),
+                                            'serie' => array($currentYQuestion, $xOptions[$ii - 1]),
                                             'option' => $y,
                                             'votes' => $votes
                                         )
                                     );
-                                    $tableHtml .=  '</td>';
+                                    $tableHtml .= '</td>';
                                 }
                             }
                         }
-                        $tableHtml .=  '	</tr>';
+                        $tableHtml .= '	</tr>';
                     }
                 }
                 // The Y axis is NOT a score question type so the number of rows = the number of options
                 else {
-                    $tableHtml .=  '	<tr>';
+                    $tableHtml .= '	<tr>';
                     for ($ii = 0; $ii <= count($question_x['answers']); $ii++) {
                         if ($question_x['type'] == 'score') {
                             for ($x = 1; $x <= $question_x['maximum_score']; $x++) {
                                 if ($ii == 0) {
-                                    $tableHtml .=  '		<th>'.$question_y['answers'][$ij].'</th>';
+                                    $tableHtml .= '		<th>'.$question_y['answers'][$ij].'</th>';
                                     break;
                                 } else {
-                                    $tableHtml .=  '		<td align="center">';
-                                    $votes =  SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)], $x, 0);
+                                    $tableHtml .= '		<td align="center">';
+                                    $votes = SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii - 1)], $question_y['answersid'][($ij)], $x, 0);
                                     $tableHtml .= $votes;
                                     array_push(
                                         $chartData,
                                         array(
-                                            'serie' => array($currentYQuestion, $xOptions[$ii-1]),
+                                            'serie' => array($currentYQuestion, $xOptions[$ii - 1]),
                                             'option' => $x,
                                             'votes' => $votes
                                         )
                                     );
-                                    $tableHtml .=  '</td>';
+                                    $tableHtml .= '</td>';
                                 }
                             }
                         } else {
                             if ($ii == 0) {
-                                $tableHtml .=  '		<th>'.$question_y['answers'][($ij)].'</th>';
+                                $tableHtml .= '		<th>'.$question_y['answers'][($ij)].'</th>';
                             } else {
-                                $tableHtml .=  '		<td align="center">';
-                                $votes = SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii-1)], $question_y['answersid'][($ij)]);
+                                $tableHtml .= '		<td align="center">';
+                                $votes = SurveyUtil::comparative_check($answers_x, $answers_y, $question_x['answersid'][($ii - 1)], $question_y['answersid'][($ij)]);
                                 $tableHtml .= $votes;
                                 array_push(
                                     $chartData,
                                     array(
-                                        'serie' => $xOptions[$ii-1],
+                                        'serie' => $xOptions[$ii - 1],
                                         'option' => $currentYQuestion,
                                         'votes' => $votes
                                     )
                                 );
-                                $tableHtml .=  '</td>';
+                                $tableHtml .= '</td>';
                             }
                         }
                     }
-                    $tableHtml .=  '	</tr>';
+                    $tableHtml .= '	</tr>';
                 }
             }
-            $tableHtml .=  '</table>';
+            $tableHtml .= '</table>';
             echo '<div id="chartContainer" class="col-md-12">';
             echo self::drawChart($chartData, true);
             echo '</div>';
@@ -3636,7 +3635,7 @@ 
                     survey_id='".intval($_GET['survey_id'])."' AND
                     session_id='".api_get_session_id()."' ";
         $res = Database::query($sql);
-        $row = Database::fetch_array($res,'ASSOC');
+        $row = Database::fetch_array($res, 'ASSOC');
 
         return $row['total'];
     }
@@ -3711,7 +3710,7 @@ 
             $exclude_users = SurveyManager::get_people_who_filled_survey($_GET['survey_id']);
         }
 
-        $counter = 0;  // Nr of invitations "sent" (if sendmail option)
+        $counter = 0; // Nr of invitations "sent" (if sendmail option)
         $course_id = api_get_course_int_id();
         $session_id = api_get_session_id();
 
@@ -3867,7 +3866,7 @@ 
         $text_link = '<a href="'.$survey_link.'">'.get_lang('ClickHereToAnswerTheSurvey')."</a><br />\r\n<br />\r\n".get_lang('OrCopyPasteTheFollowingUrl')." <br />\r\n ".$survey_link;
 
         $replace_count = 0;
-        $full_invitation_text = api_str_ireplace('**link**', $text_link ,$invitation_text, $replace_count);
+        $full_invitation_text = api_str_ireplace('**link**', $text_link, $invitation_text, $replace_count);
         if ($replace_count < 1) {
             $full_invitation_text = $full_invitation_text."<br />\r\n<br />\r\n".$text_link;
         }
@@ -3939,8 +3938,8 @@ 
         $course_id = api_get_course_int_id();
 
         // Database table definition
-        $table_survey_invitation 	= Database :: get_course_table(TABLE_SURVEY_INVITATION);
-        $table_survey 				= Database :: get_course_table(TABLE_SURVEY);
+        $table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
+        $table_survey = Database :: get_course_table(TABLE_SURVEY);
 
         // Counting the number of people that are invited
         $sql = "SELECT count(user) as total
@@ -4054,7 +4053,7 @@ 
     {
         $course_id = api_get_course_int_id();
         // Database table definition
-        $table_survey_invitation 	= Database :: get_course_table(TABLE_SURVEY_INVITATION);
+        $table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
 
         $sql = "SELECT * FROM $table_survey_invitation
 		        WHERE
@@ -4190,7 +4189,7 @@ 
     function display_survey_list_for_coach()
     {
         $parameters = array();
-        $parameters['cidReq']=api_get_course_id();
+        $parameters['cidReq'] = api_get_course_id();
         if (isset($_GET['do_search'])) {
             $message = get_lang('DisplaySearchResults').'<br />';
             $message .= '<a href="'.api_get_self().'?'.api_get_cidreq().'">'.get_lang('DisplayAll').'</a>';
@@ -4234,17 +4233,17 @@ 
 
         if ($drh) {
             return '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.
-            Display::return_icon('stats.png', get_lang('Reporting'),'',ICON_SIZE_SMALL).'</a>';
+            Display::return_icon('stats.png', get_lang('Reporting'), '', ICON_SIZE_SMALL).'</a>';
         }
 
         // Coach can see that only if the survey is in his session
         if (api_is_allowed_to_edit() ||
             api_is_element_in_the_session(TOOL_SURVEY, $survey_id)
         ) {
-            $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/create_new_survey.php?'.api_get_cidreq().'&action=edit&survey_id='.$survey_id.'">'.Display::return_icon('edit.png', get_lang('Edit'),'',ICON_SIZE_SMALL).'</a>';
+            $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/create_new_survey.php?'.api_get_cidreq().'&action=edit&survey_id='.$survey_id.'">'.Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>';
             if (SurveyManager::survey_generation_hash_available()) {
-                $return .=  Display::url(
-                    Display::return_icon('new_link.png', get_lang('GenerateSurveyAccessLink'),'',ICON_SIZE_SMALL),
+                $return .= Display::url(
+                    Display::return_icon('new_link.png', get_lang('GenerateSurveyAccessLink'), '', ICON_SIZE_SMALL),
                     api_get_path(WEB_CODE_PATH).'survey/generate_link.php?survey_id='.$survey_id.'&'.api_get_cidreq()
                 );
             }
@@ -4254,20 +4253,20 @@ 
             );
 
             $return .= ' <a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_list.php?'.api_get_cidreq().'&action=empty&survey_id='.$survey_id.'" onclick="javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang("EmptySurvey").'?')).'\')) return false;">'.
-                Display::return_icon('clean.png', get_lang('EmptySurvey'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
+                Display::return_icon('clean.png', get_lang('EmptySurvey'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
         }
         $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/preview.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.
-            Display::return_icon('preview_view.png', get_lang('Preview'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
+            Display::return_icon('preview_view.png', get_lang('Preview'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
         $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invite.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.
-            Display::return_icon('mail_send.png', get_lang('Publish'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
+            Display::return_icon('mail_send.png', get_lang('Publish'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
         $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.
-            Display::return_icon('stats.png', get_lang('Reporting'),'',ICON_SIZE_SMALL).'</a>';
+            Display::return_icon('stats.png', get_lang('Reporting'), '', ICON_SIZE_SMALL).'</a>';
 
         if (api_is_allowed_to_edit() ||
             api_is_element_in_the_session(TOOL_SURVEY, $survey_id)
         ) {
             $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_list.php?'.api_get_cidreq().'&action=delete&survey_id='.$survey_id.'" onclick="javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang("DeleteSurvey").'?', ENT_QUOTES)).'\')) return false;">'.
-                Display::return_icon('delete.png', get_lang('Delete'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
+                Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
         }
 
         return $return;
@@ -4280,9 +4279,9 @@ 
         //$return .= '<a href="survey_list.php?'.api_get_cidreq().'&action=delete&survey_id='.$survey_id.'" onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang("DeleteSurvey").'?', ENT_QUOTES)).'\')) return false;">'.Display::return_icon('delete.gif', get_lang('Delete')).'</a>';
         //$return .= '<a href="create_survey_in_another_language.php?id_survey='.$survey_id.'">'.Display::return_icon('copy.gif', get_lang('Copy')).'</a>';
         //$return .= '<a href="survey.php?survey_id='.$survey_id.'">'.Display::return_icon('add.gif', get_lang('Add')).'</a>';
-        $return = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/preview.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.Display::return_icon('preview_view.png', get_lang('Preview'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
-        $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invite.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.Display::return_icon('mail_send.png', get_lang('Publish'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
-        $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_list.php?'.api_get_cidreq().'&action=empty&survey_id='.$survey_id.'" onclick="javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang("EmptySurvey").'?', ENT_QUOTES)).'\')) return false;">'.Display::return_icon('clean.png', get_lang('EmptySurvey'),'',ICON_SIZE_SMALL).'</a>&nbsp;';
+        $return = '<a href="'.api_get_path(WEB_CODE_PATH).'survey/preview.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.Display::return_icon('preview_view.png', get_lang('Preview'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
+        $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_invite.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.Display::return_icon('mail_send.png', get_lang('Publish'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
+        $return .= '<a href="'.api_get_path(WEB_CODE_PATH).'survey/survey_list.php?'.api_get_cidreq().'&action=empty&survey_id='.$survey_id.'" onclick="javascript: if(!confirm(\''.addslashes(api_htmlentities(get_lang("EmptySurvey").'?', ENT_QUOTES)).'\')) return false;">'.Display::return_icon('clean.png', get_lang('EmptySurvey'), '', ICON_SIZE_SMALL).'</a>&nbsp;';
         //$return .= '<a href="reporting.php?'.api_get_cidreq().'&survey_id='.$survey_id.'">'.Display::return_icon('statistics.gif', get_lang('Reporting')).'</a>';
         return $return;
     }
@@ -4437,7 +4436,7 @@ 
 
             // Validation when belonging to a session
             $session_img = api_get_session_image($survey['session_id'], $_user['status']);
-            $array[2] = $survey[2] . $session_img;
+            $array[2] = $survey[2].$session_img;
             $array[3] = $survey[3];
             $array[4] = $survey[4];
             $array[5] = $survey[5];
@@ -4471,10 +4470,10 @@ 
         $last_version_surveys = $survey_tree->get_last_children_from_branch($survey_tree->surveylist);
         $list = array();
         foreach ($last_version_surveys as & $survey) {
-            $list[]=$survey['id'];
+            $list[] = $survey['id'];
         }
         if (count($list) > 0) {
-            $list_condition = " AND survey.survey_id IN (".implode(',',$list).") ";
+            $list_condition = " AND survey.survey_id IN (".implode(',', $list).") ";
         } else {
             $list_condition = '';
         }
@@ -4486,9 +4485,9 @@ 
             $direction = 'asc';
         }
 
-        $table_survey 			= Database :: get_course_table(TABLE_SURVEY);
-        $table_survey_question 	= Database :: get_course_table(TABLE_SURVEY_QUESTION);
-        $table_user 			= Database :: get_main_table(TABLE_MAIN_USER);
+        $table_survey = Database :: get_course_table(TABLE_SURVEY);
+        $table_survey_question = Database :: get_course_table(TABLE_SURVEY_QUESTION);
+        $table_user = Database :: get_main_table(TABLE_MAIN_USER);
 
         $course_id = api_get_course_int_id();
 
@@ -4603,16 +4602,16 @@ 
                     )
             ";
             $result_answer = Database::query($sql);
-            $row_answer = Database::fetch_array($result_answer,'ASSOC');
+            $row_answer = Database::fetch_array($result_answer, 'ASSOC');
             echo '<tr>';
             if ($row['answered'] == 0) {
                 echo '<td>';
-                echo Display::return_icon('statistics.png', get_lang('CreateNewSurvey'),array('style'=>'inline-block'),ICON_SIZE_TINY);
+                echo Display::return_icon('statistics.png', get_lang('CreateNewSurvey'), array('style'=>'inline-block'), ICON_SIZE_TINY);
                 echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/fillsurvey.php?course='.$_course['sysCode'].'&invitationcode='.$row['invitation_code'].'&cidReq='.$_course['sysCode'].'">'.$row['title'].'</a></td>';
             } else {
                 //echo '<td>'.$row['title'].'</td>';
                 echo '<td>';
-                echo Display::return_icon('statistics_na.png', get_lang('CreateNewSurvey'),array('style'=>'inline-block'),ICON_SIZE_TINY);
+                echo Display::return_icon('statistics_na.png', get_lang('CreateNewSurvey'), array('style'=>'inline-block'), ICON_SIZE_TINY);
                 echo '<a href="'.api_get_path(WEB_CODE_PATH).'survey/reporting.php?action=questionreport&cidReq='.$_course['sysCode'].'&id_session='.$row['session_id'].'&gidReq='.'0'.'&origin='.''.'&survey_id='.$row['survey_id'].'">'.$row['title'].'</a></td>';
             }
             echo '<td class="center">';
@@ -4624,7 +4623,7 @@ 
             } else {
                 $current_user_id = api_get_user_id();
             }
-            $link_available = self::show_link_available(api_get_user_id(),$row['code'],$current_user_id);
+            $link_available = self::show_link_available(api_get_user_id(), $row['code'], $current_user_id);
             //todo check this link
             if ($link_add === true && $link_available === true) {
                 //echo '<tr><td><a href="fillsurvey.php?user_id='.api_get_user_id().'&course='.$_course['sysCode'].'&invitationcode='.$row['invitation_code'].'&cidReq='.$_course['sysCode'].'">'.get_lang('CompleteTheSurveysQuestions').'</a></td><td></td></tr>';
@@ -4769,7 +4768,7 @@ 
                     if ($field_details[7] == 0) {
                         $field_list_array['extra_'.$field_details[1]]['visibility'] = 0;
                     } else {
-                        $field_list_array['extra_'.$field_details[1]]['visibility']=1;
+                        $field_list_array['extra_'.$field_details[1]]['visibility'] = 1;
                     }
                     break;
                 case UserManager::USER_FIELD_TYPE_DIVIDER:
@@ -4836,7 +4835,7 @@ 
         $htmlChart = '';
         if (api_browser_support("svg")) {
             $htmlChart .= api_get_js("d3/d3.v3.5.4.min.js");
-            $htmlChart .= api_get_js("dimple.v2.1.2.min.js") . '
+            $htmlChart .= api_get_js("dimple.v2.1.2.min.js").'
             <script type="text/javascript">
             var svg = dimple.newSvg("#'.$chartContainerId.'", "100%", 400);
             var data = [';
@@ -4845,40 +4844,40 @@ 
             foreach ($chartData as $chartDataElement) {
                 $htmlChart .= '{"';
                 if (!$hasSerie) {
-                    $htmlChart .= get_lang("Option") . '":"' . $chartDataElement['option'] . '", "';
+                    $htmlChart .= get_lang("Option").'":"'.$chartDataElement['option'].'", "';
                     array_push($order, $chartDataElement['option']);
                 } else {
                     if (!is_array($chartDataElement['serie'])) {
-                        $htmlChart .= get_lang("Option") . '":"' . $chartDataElement['serie'] . '", "' .
-                            get_lang("Score") . '":"' . $chartDataElement['option'] . '", "';
+                        $htmlChart .= get_lang("Option").'":"'.$chartDataElement['serie'].'", "'.
+                            get_lang("Score").'":"'.$chartDataElement['option'].'", "';
                         array_push($serie, $chartDataElement['serie']);
                     } else {
-                        $htmlChart .= get_lang("Serie") . '":"' . $chartDataElement['serie'][0] . '", "' .
-                            get_lang("Option") . '":"' . $chartDataElement['serie'][1] . '", "' .
-                            get_lang("Score") . '":"' . $chartDataElement['option'] . '", "';
+                        $htmlChart .= get_lang("Serie").'":"'.$chartDataElement['serie'][0].'", "'.
+                            get_lang("Option").'":"'.$chartDataElement['serie'][1].'", "'.
+                            get_lang("Score").'":"'.$chartDataElement['option'].'", "';
                     }
                 }
-                $htmlChart .= get_lang("Votes") . '":"' . $chartDataElement['votes'] .
+                $htmlChart .= get_lang("Votes").'":"'.$chartDataElement['votes'].
                     '"},';
             }
             rtrim($htmlChart, ",");
             $htmlChart .= '];
                 var myChart = new dimple.chart(svg, data);
-                myChart.addMeasureAxis("y", "' . get_lang("Votes") . '");';
+                myChart.addMeasureAxis("y", "' . get_lang("Votes").'");';
             if (!$hasSerie) {
-                $htmlChart .= 'var xAxisCategory = myChart.addCategoryAxis("x", "' . get_lang("Option") . '");
-                    xAxisCategory.addOrderRule(' . json_encode($order) . ');
-                    myChart.addSeries("' . get_lang("Option") . '", dimple.plot.bar);';
+                $htmlChart .= 'var xAxisCategory = myChart.addCategoryAxis("x", "'.get_lang("Option").'");
+                    xAxisCategory.addOrderRule(' . json_encode($order).');
+                    myChart.addSeries("' . get_lang("Option").'", dimple.plot.bar);';
             } else {
                 if (!is_array($chartDataElement['serie'])) {
                     $serie = array_values(array_unique($serie));
-                    $htmlChart .= 'var xAxisCategory = myChart.addCategoryAxis("x", ["' . get_lang("Option") . '","' . get_lang("Score") . '"]);
-                        xAxisCategory.addOrderRule(' . json_encode($serie) . ');
-                        xAxisCategory.addGroupOrderRule("' . get_lang("Score") . '");
-                        myChart.addSeries("' . get_lang("Option") . '", dimple.plot.bar);';
+                    $htmlChart .= 'var xAxisCategory = myChart.addCategoryAxis("x", ["'.get_lang("Option").'","'.get_lang("Score").'"]);
+                        xAxisCategory.addOrderRule(' . json_encode($serie).');
+                        xAxisCategory.addGroupOrderRule("' . get_lang("Score").'");
+                        myChart.addSeries("' . get_lang("Option").'", dimple.plot.bar);';
                 } else {
-                    $htmlChart .= 'myChart.addCategoryAxis("x", ["' . get_lang("Option") . '","' . get_lang("Score") . '"]);
-                        myChart.addSeries("' . get_lang("Serie") . '", dimple.plot.bar);';
+                    $htmlChart .= 'myChart.addCategoryAxis("x", ["'.get_lang("Option").'","'.get_lang("Score").'"]);
+                        myChart.addSeries("' . get_lang("Serie").'", dimple.plot.bar);';
                 }
             }
             $htmlChart .= 'myChart.draw();