chamilo / chamilo-lms

main/mySpace/access_details.php

Spacing +2 added lines, -2 removed lines

@@ -126,7 +126,7 @@ 
 
 echo Display::page_header(get_lang('DetailsStudentInCourse'));
 echo Display::page_subheader(
-    get_lang('User').': '.$userInfo['complete_name'].' - '.get_lang('Course').': '.$courseInfo['title'] . ' (' . $course_code . ')'
+    get_lang('User').': '.$userInfo['complete_name'].' - '.get_lang('Course').': '.$courseInfo['title'].' ('.$course_code.')'
 );
 
 $form->setDefaults(array('from' => $from, 'to' => $to));
@@ -144,7 +144,7 @@ 
         </div><br />
         <div id="cev_cont_stats">
             <?php
-            if ($result_to_print != "")  {
+            if ($result_to_print != "") {
                 $rst = get_stats($user_id, $courseId);
                 $foo_stats = '<strong>'.get_lang('Total').': </strong>'.$rst['total'].'<br />';
                 $foo_stats .= '<strong>'.get_lang('Average').': </strong>'.$rst['avg'].'<br />';

main/mySpace/myStudents.php

Spacing +76 added lines, -76 removed lines

@@ -87,52 +87,52 @@ 
 if (isset($_GET['details'])) {
     if ($origin === 'user_course') {
         if (empty($cidReq)) {
-            $interbreadcrumb[] = array (
-                "url" => api_get_path(WEB_COURSE_PATH) . $courseInfo['directory'],
+            $interbreadcrumb[] = array(
+                "url" => api_get_path(WEB_COURSE_PATH).$courseInfo['directory'],
                 'name' => $courseInfo['title']
             );
         }
-        $interbreadcrumb[] = array (
-            "url" => "../user/user.php?cidReq=" . $course_code,
+        $interbreadcrumb[] = array(
+            "url" => "../user/user.php?cidReq=".$course_code,
             "name" => get_lang("Users")
         );
     } else {
         if ($origin === 'tracking_course') {
-            $interbreadcrumb[] = array (
-                "url" => "../tracking/courseLog.php?cidReq=".$course_code.'&id_session=' . api_get_session_id(),
+            $interbreadcrumb[] = array(
+                "url" => "../tracking/courseLog.php?cidReq=".$course_code.'&id_session='.api_get_session_id(),
                 "name" => get_lang("Tracking")
             );
         } else {
             if ($origin === 'resume_session') {
-                $interbreadcrumb[] = array (
+                $interbreadcrumb[] = array(
                     'url' => "../session/session_list.php",
                     "name" => get_lang('SessionList')
                 );
-                $interbreadcrumb[] = array (
-                    'url' => "../session/resume_session.php?id_session=" . $sessionId,
+                $interbreadcrumb[] = array(
+                    'url' => "../session/resume_session.php?id_session=".$sessionId,
                     "name" => get_lang('SessionOverview')
                 );
             } else {
-                $interbreadcrumb[] = array (
-                    "url" => api_is_student_boss()?"#":"index.php",
+                $interbreadcrumb[] = array(
+                    "url" => api_is_student_boss() ? "#" : "index.php",
                     "name" => get_lang('MySpace')
                 );
                 if (isset($_GET['id_coach']) && intval($_GET['id_coach']) != 0) {
-                    $interbreadcrumb[] = array (
-                        "url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']),
+                    $interbreadcrumb[] = array(
+                        "url" => "student.php?id_coach=".Security :: remove_XSS($_GET['id_coach']),
                         "name" => get_lang("CoachStudents")
                     );
-                    $interbreadcrumb[] = array (
-                        "url" => "myStudents.php?student=" . $student_id. '&id_coach=' . Security :: remove_XSS($_GET['id_coach']),
+                    $interbreadcrumb[] = array(
+                        "url" => "myStudents.php?student=".$student_id.'&id_coach='.Security :: remove_XSS($_GET['id_coach']),
                         "name" => get_lang("StudentDetails")
                     );
                 } else {
-                    $interbreadcrumb[] = array (
+                    $interbreadcrumb[] = array(
                         "url" => "student.php",
                         "name" => get_lang("MyStudents")
                     );
-                    $interbreadcrumb[] = array (
-                        "url" => "myStudents.php?student=" . $student_id,
+                    $interbreadcrumb[] = array(
+                        "url" => "myStudents.php?student=".$student_id,
                         "name" => get_lang("StudentDetails")
                     );
                 }
@@ -142,7 +142,7 @@ 
     $nameTools = get_lang("DetailsStudentInCourse");
 } else {
     if ($origin == 'resume_session') {
-        $interbreadcrumb[] = array (
+        $interbreadcrumb[] = array(
             'url' => "../session/session_list.php",
             "name" => get_lang('SessionList')
         );
@@ -153,19 +153,19 @@ 
             );
         }
     } else {
-        $interbreadcrumb[] = array (
-            "url" => api_is_student_boss()?"#":"index.php",
+        $interbreadcrumb[] = array(
+            "url" => api_is_student_boss() ? "#" : "index.php",
             "name" => get_lang('MySpace')
         );
         if (isset($_GET['id_coach']) && intval($_GET['id_coach']) != 0) {
             if ($sessionId) {
                 $interbreadcrumb[] = array(
-                    "url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']) . "&id_session=" . $sessionId,
+                    "url" => "student.php?id_coach=".Security :: remove_XSS($_GET['id_coach'])."&id_session=".$sessionId,
                     "name" => get_lang("CoachStudents")
                 );
             } else {
                 $interbreadcrumb[] = array(
-                    "url" => "student.php?id_coach=" . Security :: remove_XSS($_GET['id_coach']),
+                    "url" => "student.php?id_coach=".Security :: remove_XSS($_GET['id_coach']),
                     "name" => get_lang("CoachStudents")
                 );
             }
@@ -350,28 +350,28 @@ 
     // Actions bar
     echo '<div class="actions">';
     echo '<a href="javascript: window.history.go(-1);">'.
-            Display::return_icon('back.png', get_lang('Back'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('back.png', get_lang('Back'), '', ICON_SIZE_MEDIUM).'</a>';
 
     echo '<a href="javascript: void(0);" onclick="javascript: window.print();">'.
-            Display::return_icon('printer.png', get_lang('Print'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display::return_icon('printer.png', get_lang('Print'), '', ICON_SIZE_MEDIUM).'</a>';
 
-    echo '<a href="' . api_get_self() . '?' . Security :: remove_XSS($_SERVER['QUERY_STRING']) . '&export=csv">'.
-            Display::return_icon('export_csv.png', get_lang('ExportAsCSV'),'',ICON_SIZE_MEDIUM).'</a> ';
+    echo '<a href="'.api_get_self().'?'.Security :: remove_XSS($_SERVER['QUERY_STRING']).'&export=csv">'.
+            Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '', ICON_SIZE_MEDIUM).'</a> ';
 
-    echo '<a href="' . api_get_self() . '?' . Security :: remove_XSS($_SERVER['QUERY_STRING']) . '&export=xls">'.
-    Display::return_icon('export_excel.png', get_lang('ExportAsXLS'),'',ICON_SIZE_MEDIUM).'</a> ';
+    echo '<a href="'.api_get_self().'?'.Security :: remove_XSS($_SERVER['QUERY_STRING']).'&export=xls">'.
+    Display::return_icon('export_excel.png', get_lang('ExportAsXLS'), '', ICON_SIZE_MEDIUM).'</a> ';
 
     if (!empty ($user_info['email'])) {
         $send_mail = '<a href="mailto:'.$user_info['email'].'">'.
-            Display :: return_icon('mail_send.png', get_lang('SendMail'),'',ICON_SIZE_MEDIUM).'</a>';
+            Display :: return_icon('mail_send.png', get_lang('SendMail'), '', ICON_SIZE_MEDIUM).'</a>';
     } else {
-        $send_mail = Display :: return_icon('mail_send_na.png', get_lang('SendMail'),'',ICON_SIZE_MEDIUM);
+        $send_mail = Display :: return_icon('mail_send_na.png', get_lang('SendMail'), '', ICON_SIZE_MEDIUM);
     }
     echo $send_mail;
     if (!empty($student_id) && !empty($course_code)) {
         // Only show link to connection details if course and student were defined in the URL
-        echo '<a href="access_details.php?student=' . $student_id . '&course=' . $course_code . '&origin=' . $origin. '&cidReq='.$course_code.'&id_session='.$sessionId.'">'.
-            Display :: return_icon('statistics.png', get_lang('AccessDetails'),'',ICON_SIZE_MEDIUM).'</a>';
+        echo '<a href="access_details.php?student='.$student_id.'&course='.$course_code.'&origin='.$origin.'&cidReq='.$course_code.'&id_session='.$sessionId.'">'.
+            Display :: return_icon('statistics.png', get_lang('AccessDetails'), '', ICON_SIZE_MEDIUM).'</a>';
     }
     if (api_can_login_as($student_id)) {
         echo '<a href="'.api_get_path(WEB_CODE_PATH).'admin/user_list.php?action=login_as&user_id='.$student_id.'&sec_token='.$token.'">'.
@@ -381,7 +381,7 @@ 
     if (api_is_platform_admin(false, true) || api_is_student_boss()) {
         echo Display::url(
             Display::return_icon('skill-badges.png', get_lang('AssignSkill'), null, ICON_SIZE_MEDIUM),
-            api_get_path(WEB_CODE_PATH) . 'badge/assign.php?' . http_build_query(['user' => $student_id])
+            api_get_path(WEB_CODE_PATH).'badge/assign.php?'.http_build_query(['user' => $student_id])
         );
     }
 
@@ -442,7 +442,7 @@ 
     $csv_content[] = array(
         get_lang('Information')
     );
-    $csv_content[] = array (
+    $csv_content[] = array(
         get_lang('Name'),
         get_lang('Email'),
         get_lang('Tel')
@@ -470,7 +470,7 @@ 
         strip_tags($first_connection_date),
         strip_tags($last_connection_date),
         $time_spent_on_the_course,
-        $avg_student_progress . '%',
+        $avg_student_progress.'%',
         $avg_student_score
     );
 
@@ -500,19 +500,19 @@ 
             </thead>
             <tbody>
             <tr>
-                <td><?php echo get_lang('Name') . ' : '.$user_info['complete_name']; ?></td>
+                <td><?php echo get_lang('Name').' : '.$user_info['complete_name']; ?></td>
             </tr>
             <tr>
-                <td><?php echo get_lang('Email') . ' : ';
+                <td><?php echo get_lang('Email').' : ';
                     if (!empty ($user_info['email'])) {
-                        echo '<a href="mailto:' . $user_info['email'] . '">' . $user_info['email'] . '</a>';
+                        echo '<a href="mailto:'.$user_info['email'].'">'.$user_info['email'].'</a>';
                     } else {
                         echo get_lang('NoEmail');
                     } ?>
                 </td>
             </tr>
             <tr>
-                <td> <?php echo get_lang('Tel') . ' : ';
+                <td> <?php echo get_lang('Tel').' : ';
                     if (!empty ($user_info['phone'])) {
                         echo $user_info['phone'];
                     } else {
@@ -522,7 +522,7 @@ 
                 </td>
             </tr>
             <tr>
-                <td> <?php echo get_lang('OfficialCode') . ' : ';
+                <td> <?php echo get_lang('OfficialCode').' : ';
                     if (!empty ($user_info['official_code'])) {
                         echo $user_info['official_code'];
                     } else {
@@ -532,7 +532,7 @@ 
                 </td>
             </tr>
             <tr>
-                <td><?php echo get_lang('OnLine') . ' : '.$online; ?> </td>
+                <td><?php echo get_lang('OnLine').' : '.$online; ?> </td>
             </tr>
             <tr>
                 <td><a href="access_details.php?student=<?php echo $student_id; ?>&course=<?php echo $course_code; ?>&origin=<?php echo $origin; ?>&cidReq=<?php echo $course_code; ?>&id_session=<?php echo $sessionId; ?>"><?php echo get_lang('SeeAccess'); ?></a></td>
@@ -549,7 +549,7 @@ 
             if ($timezone !== null) {
                 ?>
                 <tr>
-                    <td> <?php echo get_lang('Timezone') . ' : '.$timezone; ?> </td>
+                    <td> <?php echo get_lang('Timezone').' : '.$timezone; ?> </td>
                 </tr>
             <?php
             }
@@ -701,9 +701,9 @@ 
                 }
 
                 if (!empty($access_start_date) && !empty($access_end_date)) {
-                    $date_session = get_lang('From') . ' ' . $access_start_date . ' ' . get_lang('Until') . ' ' . $access_end_date;
+                    $date_session = get_lang('From').' '.$access_start_date.' '.get_lang('Until').' '.$access_end_date;
                 }
-                $title = Display::return_icon('session.png', get_lang('Session'), array(), ICON_SIZE_SMALL).' '.$session_name.($date_session?' ('.$date_session.')':'');
+                $title = Display::return_icon('session.png', get_lang('Session'), array(), ICON_SIZE_SMALL).' '.$session_name.($date_session ? ' ('.$date_session.')' : '');
             }
 
             // Courses
@@ -765,16 +765,16 @@ 
                         $scoretotal = array();
                         if (isset($cats) && isset($cats[0])) {
                             if (!empty($sId)) {
-                                $scoretotal= $cats[0]->calc_score($student_id, null, $courseCodeItem, $sId);
+                                $scoretotal = $cats[0]->calc_score($student_id, null, $courseCodeItem, $sId);
                             } else {
-                                $scoretotal= $cats[0]->calc_score($student_id, null, $courseCodeItem);
+                                $scoretotal = $cats[0]->calc_score($student_id, null, $courseCodeItem);
                             }
                         }
 
                         $scoretotal_display = '0/0 (0%)';
                         if (!empty($scoretotal) && !empty($scoretotal[1])) {
                             $scoretotal_display =
-                                round($scoretotal[0], 1 ).'/'.
+                                round($scoretotal[0], 1).'/'.
                                 round($scoretotal[1], 1).
                                 ' ('.round(($scoretotal[0] / $scoretotal[1]) * 100, 2).' %)';
                         }
@@ -805,9 +805,9 @@ 
                         );
 
                         echo '<tr>
-                        <td ><a href="' .$courseInfoItem['course_public_url'] .'?id_session=' . $sId . '">'.
+                        <td ><a href="' .$courseInfoItem['course_public_url'].'?id_session='.$sId.'">'.
                             $courseInfoItem['title'].'</a></td>
-                        <td >'.$time_spent_on_course .'</td>
+                        <td >'.$time_spent_on_course.'</td>
                         <td >'.$progress.'</td>
                         <td >'.$score.'</td>
                         <td >'.$attendances_faults_avg.'</td>
@@ -883,7 +883,7 @@ 
                 <table class="table table-striped table-hover">
                 <thead>
                 <tr>
-                    <th><?php echo get_lang('LearningPath');?></th>
+                    <th><?php echo get_lang('LearningPath'); ?></th>
                     <th>
                         <?php
                         echo get_lang('Time').' ';
@@ -986,7 +986,7 @@ 
                     if (!empty($start_time)) {
                         $start_time = api_convert_and_format_date($start_time, DATE_TIME_FORMAT_LONG);
                     } else {
-                        $start_time =  '-';
+                        $start_time = '-';
                     }
 
                     if (!empty($total_time)) {
@@ -1023,8 +1023,8 @@ 
                     $csv_content[] = array(
                         api_html_entity_decode(stripslashes($lp_name), ENT_QUOTES, $charset),
                         api_time_to_hms($total_time),
-                        $score . '%',
-                        $score_latest . '%',
+                        $score.'%',
+                        $score_latest.'%',
                         $progress.'%',
                         $start_time
                     );
@@ -1062,7 +1062,7 @@ 
                     if ($any_result === true) {
                         $from = '';
                         if ($from_myspace) {
-                            $from ='&from=myspace';
+                            $from = '&from=myspace';
                         }
                         $link = Display::url(
                             Display::return_icon('2rightarrow.png', get_lang('Details')),
@@ -1075,14 +1075,14 @@ 
                         echo '<td>';
                         if ($any_result === true) {
                             echo '<a href="myStudents.php?action=reset_lp&sec_token='.$token.'&cidReq='.$course_code.'&course='.$course_code.'&details='.Security::remove_XSS($_GET['details']).'&origin='.$origin.'&lp_id='.$learnpath->getId().'&student='.$user_info['user_id'].'&details=true&id_session='.$sessionId.'">';
-                            echo Display::return_icon('clean.png', get_lang('Clean'),'',ICON_SIZE_SMALL).'</a>';
+                            echo Display::return_icon('clean.png', get_lang('Clean'), '', ICON_SIZE_SMALL).'</a>';
                             echo '</a>';
                         }
                         echo '</td>';
                         echo '</tr>';
                     }
                     $data_learnpath[$i][] = $lp_name;
-                    $data_learnpath[$i][] = $progress . '%';
+                    $data_learnpath[$i][] = $progress.'%';
                 }
                 ?>
                 </tbody>
@@ -1098,7 +1098,7 @@ 
         <thead>
         <tr>
             <th><?php echo get_lang('Exercises'); ?></th>
-            <th><?php echo get_lang('LearningPath');?></th>
+            <th><?php echo get_lang('LearningPath'); ?></th>
             <th><?php echo get_lang('AvgCourseScore').' '.Display :: return_icon('info3.gif', get_lang('AverageScore'), array('align' => 'absmiddle', 'hspace' => '3px')) ?></th>
             <th><?php echo get_lang('Attempts'); ?></th>
             <th><?php echo get_lang('LatestAttempt'); ?></th>
@@ -1124,7 +1124,7 @@ 
             'quiz.session_id'
         );
 
-        $sql = "SELECT quiz.title, id FROM " . $t_quiz . " AS quiz
+        $sql = "SELECT quiz.title, id FROM ".$t_quiz." AS quiz
                 WHERE
                     quiz.c_id = ".$courseInfo['real_id']." AND
                     active IN (0, 1)
@@ -1189,7 +1189,7 @@ 
                 echo '<td>';
 
                 if ($count_attempts > 0) {
-                    echo $score_percentage . '%';
+                    echo $score_percentage.'%';
                 } else {
                     echo '-';
                     $score_percentage = 0;
@@ -1199,7 +1199,7 @@ 
                 echo '<td>'.$count_attempts.'</td>';
                 echo '<td>';
 
-                $sql = 'SELECT exe_id FROM ' . $tbl_stats_exercices . '
+                $sql = 'SELECT exe_id FROM '.$tbl_stats_exercices.'
                          WHERE
                             exe_exo_id = "'.$exercise_id.'" AND
                             exe_user_id ="'.$student_id.'" AND
@@ -1236,7 +1236,7 @@ 
 
                 echo '</tr>';
                 $data_exercices[$i][] = $exercices['title'];
-                $data_exercices[$i][] = $score_percentage . '%';
+                $data_exercices[$i][] = $score_percentage.'%';
                 $data_exercices[$i][] = $count_attempts;
 
                 $csv_content[] = array(
@@ -1264,7 +1264,7 @@ 
             $survey_list = SurveyManager::get_surveys($course_code, $sessionId);
 
             $survey_data = array();
-            foreach($survey_list as $survey) {
+            foreach ($survey_list as $survey) {
                 $user_list = SurveyManager::get_people_who_filled_survey($survey['survey_id'], false, $courseInfo['real_id']);
                 $survey_done = Display::return_icon("accept_na.png", get_lang('NoAnswer'), array(), ICON_SIZE_SMALL);
                 if (in_array($student_id, $user_list)) {
@@ -1289,7 +1289,7 @@ 
                         $column = 0;
                         $table->setCellContents($row, $column, $data);
                         $class = 'class="row_odd"';
-                        if($row % 2) {
+                        if ($row % 2) {
                             $class = 'class="row_even"';
                         }
                         $table->setRowAttributes($row, $class, true);
@@ -1308,12 +1308,12 @@ 
                 <table class="table table-striped table-hover">
                     <thead>
                         <tr>
-                            <th>' . get_lang('Tasks') . '</th>
-                            <th class="text-center">' . get_lang('DocumentNumber') . '</th>
-                            <th class="text-center">' . get_lang('Note') . '</th>
-                            <th class="text-center">' . get_lang('HandedOut') . '</th>
-                            <th class="text-center">' . get_lang('HandOutDateLimit') . '</th>
-                            <th class="text-center">' . get_lang('ConsideredWorkingTime') . '</th>
+                            <th>' . get_lang('Tasks').'</th>
+                            <th class="text-center">' . get_lang('DocumentNumber').'</th>
+                            <th class="text-center">' . get_lang('Note').'</th>
+                            <th class="text-center">' . get_lang('HandedOut').'</th>
+                            <th class="text-center">' . get_lang('HandOutDateLimit').'</th>
+                            <th class="text-center">' . get_lang('ConsideredWorkingTime').'</th>
                         </tr>
                     </thead>
                     <tbody>
@@ -1323,14 +1323,14 @@ 
                 $work = $work['work'];
                 foreach ($work->user_results as $key => $results) {
                     echo '<tr>';
-                    echo '<td>' . $work->title . '</td>';
+                    echo '<td>'.$work->title.'</td>';
                     $documentNumber = $key + 1;
-                    echo '<td class="text-center"><a href="' . api_get_path(WEB_CODE_PATH) . 'work/view.php?cidReq=' . $course_code . '&id_session=' . $sessionId .'&id=' . $results['id'] . '">(' . $documentNumber . ')</a></td>';
+                    echo '<td class="text-center"><a href="'.api_get_path(WEB_CODE_PATH).'work/view.php?cidReq='.$course_code.'&id_session='.$sessionId.'&id='.$results['id'].'">('.$documentNumber.')</a></td>';
                     $qualification = !empty($results['qualification']) ? $results['qualification'] : '-';
-                    echo '<td class="text-center">' . $qualification. '</td>';
-                    echo '<td class="text-center">' . $results['formatted_date']. '</td>';
+                    echo '<td class="text-center">'.$qualification.'</td>';
+                    echo '<td class="text-center">'.$results['formatted_date'].'</td>';
                     $assignment = get_work_assignment_by_id($work->id, $courseInfo['real_id']);
-                    echo '<td class="text-center">' . api_convert_and_format_date($assignment['expires_on']) . '</td>';
+                    echo '<td class="text-center">'.api_convert_and_format_date($assignment['expires_on']).'</td>';
 
                     $fieldValue = new ExtraFieldValue('work');
                     $resultExtra = $fieldValue->getAllValuesForAnItem(
@@ -1342,7 +1342,7 @@ 
                         $field = $field['value'];
 
                         if (api_get_configuration_value('considered_working_time') == $field->getField()->getVariable()) {
-                            echo '<td class="text-center">' . $field->getValue() . '</td>';
+                            echo '<td class="text-center">'.$field->getValue().'</td>';
                         }
                     }
 

main/inc/lib/myspace.lib.php

Spacing +101 added lines, -101 removed lines

@@ -134,7 +134,7 @@ 
         $session_id  = intval($session_id);
 
         $sql = 'SELECT login_course_date, logout_course_date
-                FROM ' . $tbl_track_course . '
+                FROM ' . $tbl_track_course.'
                 WHERE
                     user_id = '.$user_id.' AND
                     c_id = '.$courseId.' AND
@@ -173,7 +173,7 @@ 
         foreach ($course_list as $course_item) {
             $courseInfo = api_get_course_info($course_item['code']);
             $courseId = $courseInfo['real_id'];
-            $new_course_list[] =  '"'.$courseId.'"';
+            $new_course_list[] = '"'.$courseId.'"';
         }
         $course_list = implode(', ', $new_course_list);
 
@@ -181,7 +181,7 @@ 
             return false;
         }
         $sql = 'SELECT login_course_date, logout_course_date, c_id
-                FROM ' . $tbl_track_course . '
+                FROM ' . $tbl_track_course.'
                 WHERE
                     user_id = '.$user_id.' AND
                     c_id IN ('.$course_list.') AND
@@ -259,7 +259,7 @@ 
             // student score
             $avg_score = Tracking :: get_avg_student_score($user_id, $courseCode);
             if (is_numeric($avg_score)) {
-                $avg_score = round($avg_score,2);
+                $avg_score = round($avg_score, 2);
             } else {
                 $$avg_score = '-';
             }
@@ -295,7 +295,7 @@ 
 
         $t_head = '    <table style="width: 100%;border:0;padding:0;border-collapse:collapse;table-layout: fixed">';
         //$t_head .= '  <caption>'.get_lang('CourseInformation').'</caption>';
-        $t_head .=      '<tr>';
+        $t_head .= '<tr>';
         $t_head .= '        <th width="155px" style="border-left:0;border-bottom:0"><span>'.get_lang('Course').'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgTimeSpentInTheCourse'), 6, true).'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgStudentsProgress'), 6, true).'</span></th>';
@@ -313,7 +313,7 @@ 
 
         $addparams = array('view' => 'admin', 'display' => 'user');
 
-        $table = new SortableTable('tracking_user_overview', array('MySpace','get_number_of_users_tracking_overview'), array('MySpace','get_user_data_tracking_overview'), 0);
+        $table = new SortableTable('tracking_user_overview', array('MySpace', 'get_number_of_users_tracking_overview'), array('MySpace', 'get_user_data_tracking_overview'), 0);
         $table->additional_parameters = $addparams;
 
         $table->set_header(0, get_lang('OfficialCode'), true, array('style' => 'font-size:8pt'), array('style' => 'font-size:8pt'));
@@ -326,7 +326,7 @@ 
         }
         $table->set_header(3, get_lang('LoginName'), true, array('style' => 'font-size:8pt'), array('style' => 'font-size:8pt'));
         $table->set_header(4, $t_head, false, array('style' => 'width:90%;border:0;padding:0;font-size:7.5pt;'), array('style' => 'width:90%;padding:0;font-size:7.5pt;'));
-        $table->set_column_filter(4, array('MySpace','course_info_tracking_filter'));
+        $table->set_column_filter(4, array('MySpace', 'course_info_tracking_filter'));
         $table->display();
     }
 
@@ -386,7 +386,7 @@ 
         $table -> set_header(7, get_lang('Sessions'), false);
 
         if ($is_western_name_order) {
-            $csv_header[] = array (
+            $csv_header[] = array(
                 get_lang('FirstName'),
                 get_lang('LastName'),
                 get_lang('TimeSpentOnThePlatform'),
@@ -396,7 +396,7 @@ 
                 get_lang('NumberOfSessions')
             );
         } else {
-            $csv_header[] = array (
+            $csv_header[] = array(
                 get_lang('LastName'),
                 get_lang('FirstName'),
                 get_lang('TimeSpentOnThePlatform'),
@@ -536,9 +536,9 @@ 
 
         if ($tracking_column != 3) {
             if ($tracking_direction == 'DESC') {
-                usort($all_datas, array('MySpace','rsort_users'));
+                usort($all_datas, array('MySpace', 'rsort_users'));
             } else {
-                usort($all_datas, array('MySpace','sort_users'));
+                usort($all_datas, array('MySpace', 'sort_users'));
             }
         }
 
@@ -597,7 +597,7 @@ 
         /**
          * Column config
          */
-        $column_model   = array(
+        $column_model = array(
             array(
                 'name' => 'username',
                 'index' => 'username',
@@ -638,7 +638,7 @@ 
 
         $action_links = '';
         // jqgrid will use this URL to do the selects
-        $url = api_get_path(WEB_AJAX_PATH).'model.ajax.php?a=get_session_lp_progress&session_id=' . $sessionId . '&course_id=' . $courseId . '&date_to=' . $date_to . '&date_from=' . $date_from;
+        $url = api_get_path(WEB_AJAX_PATH).'model.ajax.php?a=get_session_lp_progress&session_id='.$sessionId.'&course_id='.$courseId.'&date_to='.$date_to.'&date_from='.$date_from;
 
         //Table Id
         $tableId = 'lpProgress';
@@ -660,11 +660,11 @@ 
             true
         );
 
-        $return = '<script>$(function() {'. $table .
+        $return = '<script>$(function() {'.$table.
             'jQuery("#'.$tableId.'").jqGrid("navGrid","#'.$tableId.'_pager",{view:false, edit:false, add:false, del:false, search:false, excel:true});
                 jQuery("#'.$tableId.'").jqGrid("navButtonAdd","#'.$tableId.'_pager",{
                        caption:"",
-                       title:"' . get_lang('ExportExcel') . '",
+                       title:"' . get_lang('ExportExcel').'",
                        onClickButton : function () {
                            jQuery("#'.$tableId.'").jqGrid("excelExport",{"url":"'.$url.'&export_format=xls"});
                        }
@@ -714,7 +714,7 @@ 
         /**
          * Column config
          */
-        $column_model   = array(
+        $column_model = array(
             array('name'=>'session', 'index'=>'session', 'align'=>'left', 'search' => 'true', 'wrap_cell' => "true"),
             array('name'=>'exercise_id', 'index'=>'exercise_id', 'align'=>'left', 'search' => 'true'),
             array('name'=>'quiz_title', 'index'=>'quiz_title', 'align'=>'left', 'search' => 'true'),
@@ -731,7 +731,7 @@ 
         //get dynamic column names
 
         // jqgrid will use this URL to do the selects
-        $url = api_get_path(WEB_AJAX_PATH).'model.ajax.php?a=get_exercise_progress&session_id=' . $sessionId . '&course_id=' . $courseId  . '&exercise_id=' . $exerciseId . '&date_to=' . $date_to . '&date_from=' . $date_from;
+        $url = api_get_path(WEB_AJAX_PATH).'model.ajax.php?a=get_exercise_progress&session_id='.$sessionId.'&course_id='.$courseId.'&exercise_id='.$exerciseId.'&date_to='.$date_to.'&date_from='.$date_from;
 
         // Autowidth
         $extra_params['autowidth'] = 'true';
@@ -742,11 +742,11 @@ 
         $tableId = 'exerciseProgressOverview';
         $table = Display::grid_js($tableId, $url, $columns, $column_model, $extra_params, array(), '', true);
 
-        $return = '<script>$(function() {'. $table .
+        $return = '<script>$(function() {'.$table.
             'jQuery("#'.$tableId.'").jqGrid("navGrid","#'.$tableId.'_pager",{view:false, edit:false, add:false, del:false, search:false, excel:true});
                 jQuery("#'.$tableId.'").jqGrid("navButtonAdd","#'.$tableId.'_pager",{
                        caption:"",
-                       title:"' . get_lang('ExportExcel') . '",
+                       title:"' . get_lang('ExportExcel').'",
                        onClickButton : function () {
                            jQuery("#'.$tableId.'").jqGrid("excelExport",{"url":"'.$url.'&export_format=xls"});
                        }
@@ -806,7 +806,7 @@ 
                 // adding the fields that are checked to the session
                 $message = '';
                 foreach ($values as $field_ids => $value) {
-                    if ($value == 1 && strstr($field_ids,'extra_export_field')) {
+                    if ($value == 1 && strstr($field_ids, 'extra_export_field')) {
                         $_SESSION['additional_export_fields'][] = str_replace('extra_export_field', '', $field_ids);
                     }
                 }
@@ -821,7 +821,7 @@ 
                 // Displaying a feedback message
                 if (!empty($_SESSION['additional_export_fields'])) {
                     Display::display_confirmation_message(get_lang('FollowingFieldsWillAlsoBeExported').': <br /><ul>'.$message.'</ul>', false);
-                } else  {
+                } else {
                     Display::display_confirmation_message(get_lang('NoAdditionalFieldsWillBeExported'), false);
                 }
             } else {
@@ -849,7 +849,7 @@ 
     {
         $t_head = '    <table style="width: 100%;border:0;padding:0;border-collapse:collapse;table-layout: fixed">';
         //$t_head .= '  <caption>'.get_lang('CourseInformation').'</caption>';
-        $t_head .=      '<tr>';
+        $t_head .= '<tr>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgTimeSpentInTheCourse'), 6, true).'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgStudentsProgress'), 6, true).'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgCourseScore'), 6, true).'</span></th>';
@@ -866,13 +866,13 @@ 
 
         $addparams = array('view' => 'admin', 'display' => 'courseoverview');
 
-        $table = new SortableTable('tracking_session_overview', array('MySpace', 'get_total_number_courses'), array('MySpace','get_course_data_tracking_overview'), 1);
+        $table = new SortableTable('tracking_session_overview', array('MySpace', 'get_total_number_courses'), array('MySpace', 'get_course_data_tracking_overview'), 1);
         $table->additional_parameters = $addparams;
 
         $table->set_header(0, '', false, null, array('style' => 'display: none'));
         $table->set_header(1, get_lang('Course'), true, array('style' => 'font-size:8pt'), array('style' => 'font-size:8pt'));
         $table->set_header(2, $t_head, false, array('style' => 'width:90%;border:0;padding:0;font-size:7.5pt;'), array('style' => 'width:90%;padding:0;font-size:7.5pt;'));
-        $table->set_column_filter(2, array('MySpace','course_tracking_filter'));
+        $table->set_column_filter(2, array('MySpace', 'course_tracking_filter'));
         $table->display();
     }
 
@@ -910,7 +910,7 @@ 
         $sql .= " ORDER BY col$column $direction ";
         $sql .= " LIMIT $from,$number_of_items";
         $result = Database::query($sql);
-        $return = array ();
+        $return = array();
         while ($course = Database::fetch_row($result)) {
             $return[] = $course;
         }
@@ -963,18 +963,18 @@ 
             $progress += $progress_tmp[0];
             $nb_progress_lp += $progress_tmp[1];
             $score_tmp = Tracking :: get_avg_student_score($row->user_id, $course_code, array(), null, true);
-            if(is_array($score_tmp)) {
+            if (is_array($score_tmp)) {
                 $score += $score_tmp[0];
                 $nb_score_lp += $score_tmp[1];
             }
             $nb_messages += Tracking::count_student_messages($row->user_id, $course_code);
             $nb_assignments += Tracking::count_student_assignments($row->user_id, $course_code);
             $last_login_date_tmp = Tracking :: get_last_connection_date_on_the_course($row->user_id, $courseInfo, null, false);
-            if($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned
+            if ($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned
                 $last_login_date = $last_login_date_tmp;
-            } else if($last_login_date_tmp != false && $last_login_date != false) { // TODO: Repeated previous condition. To be cleaned.
+            } else if ($last_login_date_tmp != false && $last_login_date != false) { // TODO: Repeated previous condition. To be cleaned.
                 // Find the max and assign it to first_login_date
-                if(strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
+                if (strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
                     $last_login_date = $last_login_date_tmp;
                 }
             }
@@ -1112,7 +1112,7 @@ 
                 $progress += $progress_tmp[0];
                 $nb_progress_lp += $progress_tmp[1];
                 $score_tmp = Tracking :: get_avg_student_score($row->user_id, $course_code, array(), null, true);
-                if(is_array($score_tmp)) {
+                if (is_array($score_tmp)) {
                     $score += $score_tmp[0];
                     $nb_score_lp += $score_tmp[1];
                 }
@@ -1120,11 +1120,11 @@ 
                 $nb_assignments += Tracking::count_student_assignments($row->user_id, $course_code);
 
                 $last_login_date_tmp = Tracking::get_last_connection_date_on_the_course($row->user_id, $courseInfo, null, false);
-                if($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned.
+                if ($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned.
                     $last_login_date = $last_login_date_tmp;
-                } else if($last_login_date_tmp != false && $last_login_date == false) { // TODO: Repeated previous condition. To be cleaned.
+                } else if ($last_login_date_tmp != false && $last_login_date == false) { // TODO: Repeated previous condition. To be cleaned.
                     // Find the max and assign it to first_login_date
-                    if(strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
+                    if (strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
                         $last_login_date = $last_login_date_tmp;
                     }
                 }
@@ -1134,22 +1134,22 @@ 
                 $total_score_possible += $exercise_results_tmp['score_possible'];
                 $total_questions_answered += $exercise_results_tmp['questions_answered'];
             }
-            if($nb_progress_lp > 0) {
+            if ($nb_progress_lp > 0) {
                 $avg_progress = round($progress / $nb_progress_lp, 2);
             } else {
                 $avg_progress = 0;
             }
-            if($nb_score_lp > 0) {
+            if ($nb_score_lp > 0) {
                 $avg_score = round($score / $nb_score_lp, 2);
             } else {
                 $avg_score = '-';
             }
-            if($last_login_date) {
+            if ($last_login_date) {
                 $last_login_date = api_convert_and_format_date($last_login_date, DATE_FORMAT_SHORT, date_default_timezone_get());
             } else {
                 $last_login_date = '-';
             }
-            if($total_score_possible > 0) {
+            if ($total_score_possible > 0) {
                 $total_score_percentage = round($total_score_obtained / $total_score_possible * 100, 2);
             } else {
                 $total_score_percentage = 0;
@@ -1185,7 +1185,7 @@ 
     {
         $t_head = '    <table style="width: 100%;border:0;padding:0;border-collapse:collapse;table-layout: fixed">';
         //$t_head .= '  <caption>'.get_lang('CourseInformation').'</caption>';
-        $t_head .=      '<tr>';
+        $t_head .= '<tr>';
         $t_head .= '        <th width="155px" style="border-left:0;border-bottom:0"><span>'.get_lang('Course').'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgTimeSpentInTheCourse'), 6, true).'</span></th>';
         $t_head .= '        <th style="padding:0;border-bottom:0"><span>'.cut(get_lang('AvgStudentsProgress'), 6, true).'</span></th>';
@@ -1203,7 +1203,7 @@ 
 
         $addparams = array('view' => 'admin', 'display' => 'sessionoverview');
 
-        $table = new SortableTable('tracking_session_overview', array('MySpace','get_total_number_sessions'), array('MySpace','get_session_data_tracking_overview'), 1);
+        $table = new SortableTable('tracking_session_overview', array('MySpace', 'get_total_number_sessions'), array('MySpace', 'get_session_data_tracking_overview'), 1);
         $table->additional_parameters = $addparams;
 
         $table->set_header(0, '', false, null, array('style' => 'display: none'));
@@ -1245,7 +1245,7 @@ 
         $sql .= " ORDER BY col$column $direction ";
         $sql .= " LIMIT $from,$number_of_items";
         $result = Database::query($sql);
-        $return = array ();
+        $return = array();
         while ($session = Database::fetch_row($result)) {
             $return[] = $session;
         }
@@ -1334,10 +1334,10 @@ 
                 if ($last_login_date_tmp != false && $last_login_date == false) {
                     // TODO: To be cleaned.
                     $last_login_date = $last_login_date_tmp;
-                } else if($last_login_date_tmp != false && $last_login_date != false) {
+                } else if ($last_login_date_tmp != false && $last_login_date != false) {
                     // TODO: Repeated previous condition! To be cleaned.
                     // Find the max and assign it to first_login_date
-                    if(strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
+                    if (strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
                         $last_login_date = $last_login_date_tmp;
                     }
                 }
@@ -1347,27 +1347,27 @@ 
                 $total_score_possible += $exercise_results_tmp['score_possible'];
                 $total_questions_answered += $exercise_results_tmp['questions_answered'];
             }
-            if($nb_progress_lp > 0) {
+            if ($nb_progress_lp > 0) {
                 $avg_progress = round($progress / $nb_progress_lp, 2);
             } else {
                 $avg_progress = 0;
             }
-            if($nb_score_lp > 0) {
+            if ($nb_score_lp > 0) {
                 $avg_score = round($score / $nb_score_lp, 2);
             } else {
                 $avg_score = '-';
             }
-            if($last_login_date) {
+            if ($last_login_date) {
                 $last_login_date = api_convert_and_format_date($last_login_date, DATE_FORMAT_SHORT, date_default_timezone_get());
             } else {
                 $last_login_date = '-';
             }
-            if($total_score_possible > 0) {
+            if ($total_score_possible > 0) {
                 $total_score_percentage = round($total_score_obtained / $total_score_possible * 100, 2);
             } else {
                 $total_score_percentage = 0;
             }
-            if($total_score_percentage > 0) {
+            if ($total_score_percentage > 0) {
                 $total_score = $total_score_obtained.'/'.$total_score_possible.' ('.$total_score_percentage.' %)';
             } else {
                 $total_score = '-';
@@ -1478,7 +1478,7 @@ 
                 $total_score_obtained = 0;
                 $total_score_possible = 0;
                 $total_questions_answered = 0;
-                while($row_user = Database::fetch_object($result_users)) {
+                while ($row_user = Database::fetch_object($result_users)) {
                     // get time spent in the course and session
                     $time_spent += Tracking::get_time_spent_on_the_course($row_user->user_id, $courseId, $session_id);
                     $progress_tmp = Tracking::get_avg_student_progress($row_user->user_id, $row->code, array(), $session_id, true);
@@ -1507,11 +1507,11 @@ 
                         $session_id,
                         false
                     );
-                    if($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned.
+                    if ($last_login_date_tmp != false && $last_login_date == false) { // TODO: To be cleaned.
                         $last_login_date = $last_login_date_tmp;
-                    } else if($last_login_date_tmp != false && $last_login_date == false) { // TODO: Repeated previous condition. To be cleaned.
+                    } else if ($last_login_date_tmp != false && $last_login_date == false) { // TODO: Repeated previous condition. To be cleaned.
                         // Find the max and assign it to first_login_date
-                        if(strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
+                        if (strtotime($last_login_date_tmp) > strtotime($last_login_date)) {
                             $last_login_date = $last_login_date_tmp;
                         }
                     }
@@ -1521,27 +1521,27 @@ 
                     $total_score_possible += $exercise_results_tmp['score_possible'];
                     $total_questions_answered += $exercise_results_tmp['questions_answered'];
                 }
-                if($nb_progress_lp > 0) {
+                if ($nb_progress_lp > 0) {
                     $avg_progress = round($progress / $nb_progress_lp, 2);
                 } else {
                     $avg_progress = 0;
                 }
-                if($nb_score_lp > 0) {
+                if ($nb_score_lp > 0) {
                     $avg_score = round($score / $nb_score_lp, 2);
                 } else {
                     $avg_score = '-';
                 }
-                if($last_login_date) {
+                if ($last_login_date) {
                     $last_login_date = api_convert_and_format_date($last_login_date, DATE_FORMAT_SHORT, date_default_timezone_get());
                 } else {
                     $last_login_date = '-';
                 }
-                if($total_score_possible > 0) {
+                if ($total_score_possible > 0) {
                     $total_score_percentage = round($total_score_obtained / $total_score_possible * 100, 2);
                 } else {
                     $total_score_percentage = 0;
                 }
-                if($total_score_percentage > 0) {
+                if ($total_score_percentage > 0) {
                     $total_score = $total_score_obtained.'/'.$total_score_possible.' ('.$total_score_percentage.' %)';
                 } else {
                     $total_score = '-';
@@ -1601,7 +1601,7 @@ 
         while ($row = Database::fetch_array($result)) {
             $score_obtained += $row['exe_result'];
             $score_possible += $row['exe_weighting'];
-            $questions_answered ++;
+            $questions_answered++;
         }
 
         if ($score_possible != 0) {
@@ -1721,9 +1721,9 @@ 
                     }
                 }
                 // time spent in the course
-                $csv_row[] = api_time_to_hms(Tracking::get_time_spent_on_the_course ($user[4], $courseId));
+                $csv_row[] = api_time_to_hms(Tracking::get_time_spent_on_the_course($user[4], $courseId));
                 // student progress in course
-                $csv_row[] = round(Tracking::get_avg_student_progress ($user[4], $row[0]), 2);
+                $csv_row[] = round(Tracking::get_avg_student_progress($user[4], $row[0]), 2);
                 // student score
                 $csv_row[] = round(Tracking::get_avg_student_score($user[4], $row[0]), 2);
                 // student tes score
@@ -1731,7 +1731,7 @@ 
                 // student messages
                 $csv_row[] = Tracking::count_student_messages($user[4], $row[0]);
                 // student assignments
-                $csv_row[] = Tracking::count_student_assignments ($user[4], $row[0]);
+                $csv_row[] = Tracking::count_student_assignments($user[4], $row[0]);
                 // student exercises results
                 $exercises_results = MySpace::exercises_results($user[4], $row[0]);
                 $csv_row[] = $exercises_results['score_obtained'];
@@ -1739,7 +1739,7 @@ 
                 $csv_row[] = $exercises_results['questions_answered'];
                 $csv_row[] = $exercises_results['percentage'];
                 // first connection
-                $csv_row[] = Tracking::get_first_connection_date_on_the_course ($user[4], $courseId);
+                $csv_row[] = Tracking::get_first_connection_date_on_the_course($user[4], $courseId);
                 // last connection
                 $csv_row[] = strip_tags(Tracking::get_last_connection_date_on_the_course($user[4], $courseInfo));
 
@@ -1773,9 +1773,9 @@ 
         // get all courses with limit
         $sql = "SELECT course.code as col1, course.title as col2
                 FROM $tbl_course course
-                WHERE course.code IN (".implode(',',$courses_code).")";
+                WHERE course.code IN (".implode(',', $courses_code).")";
 
-        if (!in_array($direction, array('ASC','DESC'))) $direction = 'ASC';
+        if (!in_array($direction, array('ASC', 'DESC'))) $direction = 'ASC';
 
         $column = intval($column);
         $from = intval($from);
@@ -1844,7 +1844,7 @@ 
             $table_row[] = $avg_assignments_in_course;
 
             //set the "from" value to know if I access the Reporting by the chamilo tab or the course link
-            $table_row[] = '<center><a href="../../tracking/courseLog.php?cidReq=' .$course_code.'&from=myspace&id_session='.$session_id.'">
+            $table_row[] = '<center><a href="../../tracking/courseLog.php?cidReq='.$course_code.'&from=myspace&id_session='.$session_id.'">
                              '.Display::return_icon('2rightarrow.png').'
                              </a>
                             </center>';
@@ -1853,7 +1853,7 @@ 
                 $nb_students_in_course,
                 $avg_time_spent_in_course,
                 is_null($avg_progress_in_course) ? null : $avg_progress_in_course.'%',
-                is_null($avg_score_in_course) ? null : is_numeric($avg_score_in_course) ? $avg_score_in_course.'%' : $avg_score_in_course ,
+                is_null($avg_score_in_course) ? null : is_numeric($avg_score_in_course) ? $avg_score_in_course.'%' : $avg_score_in_course,
                 is_null($avg_score_in_exercise) ? null : $avg_score_in_exercise.'%',
                 $avg_messages_in_course,
                 $avg_assignments_in_course,
@@ -1924,7 +1924,7 @@ 
         $sql .= " ORDER BY col$column $direction ";
         $sql .= " LIMIT $from,$number_of_items";
         $result = Database::query($sql);
-        $return = array ();
+        $return = array();
         while ($user = Database::fetch_row($result)) {
             $return[] = $user;
         }
@@ -1979,7 +1979,7 @@ 
                     $i++;
                 }
             }
-            $username_array = array('username' => $desired_username , 'sufix' => $sufix);
+            $username_array = array('username' => $desired_username, 'sufix' => $sufix);
             return $username_array;
         } else {
             $username_array = array('username' => $username, 'sufix' => '');
@@ -2254,7 +2254,7 @@ 
         foreach ($users as $index => $user) {
             $userid = $user['id'];
             $sql_insert = "INSERT IGNORE INTO $tbl_session_rel_user(session_id, user_id, registered_at)
-                           VALUES ('$id_session','$userid', '" . api_get_utc_datetime() . "')";
+                           VALUES ('$id_session','$userid', '".api_get_utc_datetime()."')";
             Database::query($sql_insert);
             $user['added_at_session'] = 1;
             $new_users[] = $user;
@@ -2288,10 +2288,10 @@ 
                 );
                 $userInfo = api_get_user_info($user['id']);
 
-                if (($user['added_at_platform'] == 1  && $user['added_at_session'] == 1) || $user['added_at_session'] == 1) {
+                if (($user['added_at_platform'] == 1 && $user['added_at_session'] == 1) || $user['added_at_session'] == 1) {
                     if ($user['added_at_platform'] == 1) {
                         $addedto = get_lang('UserCreatedPlatform');
-                    } else  {
+                    } else {
                         $addedto = '          ';
                     }
 
@@ -2354,7 +2354,7 @@ 
         global $current_tag;
         switch ($data) {
             case 'Contact' :
-                $user = array ();
+                $user = array();
                 break;
             default :
                 $current_tag = $data;
@@ -2401,9 +2401,9 @@ 
         global $current_value;
         global $user;
         global $users;
-        $users = array ();
+        $users = array();
         $parser = xml_parser_create('UTF-8');
-        xml_set_element_handler($parser, array('MySpace','element_start'), array('MySpace','element_end'));
+        xml_set_element_handler($parser, array('MySpace', 'element_start'), array('MySpace', 'element_end'));
         xml_set_character_data_handler($parser, "character_data");
         xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, false);
         xml_parse($parser, api_utf8_encode_xml(file_get_contents($file)));
@@ -2449,7 +2449,7 @@ 
             get_lang('SearchCourse'),
             $courseList,
             [
-                'url' => api_get_path(WEB_AJAX_PATH) . 'course.ajax.php?' . http_build_query([
+                'url' => api_get_path(WEB_AJAX_PATH).'course.ajax.php?'.http_build_query([
                     'a' => 'search_course_by_session_all',
                     'session_id' => $sessionId
                 ])
@@ -2468,7 +2468,7 @@ 
                             course_id: $('#course_id').val() || 0
                         });
 
-                        return '" . api_get_path(WEB_AJAX_PATH) . "session.ajax.php?' + params;
+                        return '" . api_get_path(WEB_AJAX_PATH)."session.ajax.php?' + params;
                     }
                 "
             ]
@@ -2499,7 +2499,7 @@ 
                             course_id: $('#course_id').val()
                         });
 
-                        return '" . api_get_path(WEB_AJAX_PATH) . "course.ajax.php?' + params;
+                        return '" . api_get_path(WEB_AJAX_PATH)."course.ajax.php?' + params;
                     }
                 "
             ]
@@ -2600,7 +2600,7 @@ 
                     " : "
                         u.lastname AS col2,
                         u.firstname AS col3,
-                " ) . "
+                " )."
                 a.logout_course_date,
                 c.title,
                 c.code,
@@ -2611,7 +2611,7 @@ 
 
         if (isset($_GET['session_id']) && !empty($_GET['session_id'])) {
             $sessionId = intval($_GET['session_id']);
-            $sql .= " WHERE a.session_id = " . $sessionId;
+            $sql .= " WHERE a.session_id = ".$sessionId;
         }
 
         $sql .= " ORDER BY col$column $orderDirection ";
@@ -2717,13 +2717,13 @@ 
 function get_stats($user_id, $courseId, $start_date = null, $end_date = null)
 {
     // Database table definitions
-    $tbl_track_course   = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
+    $tbl_track_course = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
 
     $course_info = api_get_course_info_by_id($courseId);
     if (!empty($course_info)) {
         $strg_sd = '';
         $strg_ed = '';
-        if ($start_date != null && $end_date != null){
+        if ($start_date != null && $end_date != null) {
             $end_date = add_day_to($end_date);
             $strg_sd = "AND login_course_date BETWEEN '$start_date' AND '$end_date'";
             $strg_ed = "AND logout_course_date BETWEEN '$start_date' AND '$end_date'";
@@ -2732,10 +2732,10 @@ 
                 SEC_TO_TIME(avg(time_to_sec(timediff(logout_course_date,login_course_date)))) as avrg,
                 SEC_TO_TIME(sum(time_to_sec(timediff(logout_course_date,login_course_date)))) as total,
                 count(user_id) as times
-                FROM ' . $tbl_track_course . '
+                FROM ' . $tbl_track_course.'
                 WHERE
-                    user_id = ' . intval($user_id) . ' AND
-                    c_id = ' . intval($courseId) . ' '.$strg_sd.' '.$strg_ed.' '.'
+                    user_id = ' . intval($user_id).' AND
+                    c_id = ' . intval($courseId).' '.$strg_sd.' '.$strg_ed.' '.'
                 ORDER BY login_course_date ASC';
 
         $rs = Database::query($sql);
@@ -2753,7 +2753,7 @@ 
 }
 
 function add_day_to($end_date) {
-    $foo_date = strtotime( $end_date );
+    $foo_date = strtotime($end_date);
     $foo_date = strtotime(" +1 day", $foo_date);
     $foo_date = date("Y-m-d", $foo_date);
     return $foo_date;
@@ -2767,7 +2767,7 @@ 
  * @version OCT-22- 2010
  * @return array
  */
-function convert_to_array($sql_result){
+function convert_to_array($sql_result) {
     $result_to_print = '<table>';
     foreach ($sql_result as $key => $data) {
         $result_to_print .= '<tr><td>'.date('d-m-Y (H:i:s)', $data['login']).'</td><td>'.api_time_to_hms($data['logout'] - $data['login']).'</tr></td>'."\n";
@@ -2786,7 +2786,7 @@ 
  * @version OCT-22- 2010
  * @return string
  */
-function convert_to_string($sql_result){
+function convert_to_string($sql_result) {
     $result_to_print = '<table>';
     if (!empty($sql_result)) {
         foreach ($sql_result as $key => $data) {
@@ -2811,10 +2811,10 @@ 
  */
 function grapher($sql_result, $start_date, $end_date, $type = "")
 {
-    if (empty($start_date)) { $start_date =""; }
-    if (empty($end_date)) { $end_date =""; }
-    if ($type == ""){ $type = 'day'; }
-    $main_year  = $main_month_year = $main_day = [];
+    if (empty($start_date)) { $start_date = ""; }
+    if (empty($end_date)) { $end_date = ""; }
+    if ($type == "") { $type = 'day'; }
+    $main_year = $main_month_year = $main_day = [];
 
     $period = new DatePeriod(
         new DateTime($start_date),
@@ -2873,7 +2873,7 @@ 
         /* Create and populate the pData object */
         $myData = new pData();
         $myData->addPoints($main_date, 'Serie1');
-        if (count($main_date)!= 1) {
+        if (count($main_date) != 1) {
             $myData->addPoints($labels, 'Labels');
             $myData->setSerieDescription('Labels', 'Months');
             $myData->setAbscissa('Labels');
@@ -2881,7 +2881,7 @@ 
         $myData->setSerieWeight('Serie1', 1);
         $myData->setSerieDescription('Serie1', get_lang('MyResults'));
         $myData->setAxisName(0, get_lang('Minutes'));
-        $myData->loadPalette(api_get_path(SYS_CODE_PATH) . 'palettes/pchart/default.color', true);
+        $myData->loadPalette(api_get_path(SYS_CODE_PATH).'palettes/pchart/default.color', true);
 
         // Cache definition
         $cachePath = api_get_path(SYS_ARCHIVE_PATH);
@@ -2890,9 +2890,9 @@ 
 
         if ($myCache->isInCache($chartHash)) {
             //if we already created the img
-            $imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
+            $imgPath = api_get_path(SYS_ARCHIVE_PATH).$chartHash;
             $myCache->saveFromCache($chartHash, $imgPath);
-            $imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
+            $imgPath = api_get_path(WEB_ARCHIVE_PATH).$chartHash;
         } else {
             /* Define width, height and angle */
             $mainWidth = 760;
@@ -2921,7 +2921,7 @@ 
             /* Set the default font */
             $myPicture->setFontProperties(
                 array(
-                    "FontName" => api_get_path(SYS_FONTS_PATH) . 'opensans/OpenSans-Regular.ttf',
+                    "FontName" => api_get_path(SYS_FONTS_PATH).'opensans/OpenSans-Regular.ttf',
                     "FontSize" => 10)
             );
             /* Write the chart title */
@@ -2938,7 +2938,7 @@ 
             /* Set the default font */
             $myPicture->setFontProperties(
                 array(
-                    "FontName" => api_get_path(SYS_FONTS_PATH) . 'opensans/OpenSans-Regular.ttf',
+                    "FontName" => api_get_path(SYS_FONTS_PATH).'opensans/OpenSans-Regular.ttf',
                     "FontSize" => 8
                 )
             );
@@ -2980,7 +2980,7 @@ 
             /* Draw the line chart */
             $myPicture->setFontProperties(
                 array(
-                    "FontName" => api_get_path(SYS_FONTS_PATH) . 'opensans/OpenSans-Regular.ttf',
+                    "FontName" => api_get_path(SYS_FONTS_PATH).'opensans/OpenSans-Regular.ttf',
                     "FontSize" => 10
                 )
             );
@@ -2999,15 +2999,15 @@ 
 
             /* Write and save into cache */
             $myCache->writeToCache($chartHash, $myPicture);
-            $imgPath = api_get_path(SYS_ARCHIVE_PATH) . $chartHash;
+            $imgPath = api_get_path(SYS_ARCHIVE_PATH).$chartHash;
             $myCache->saveFromCache($chartHash, $imgPath);
-            $imgPath = api_get_path(WEB_ARCHIVE_PATH) . $chartHash;
+            $imgPath = api_get_path(WEB_ARCHIVE_PATH).$chartHash;
         }
-        $html = '<img src="' . $imgPath . '">';
+        $html = '<img src="'.$imgPath.'">';
 
         return $html;
     } else {
-        $foo_img = api_convert_encoding('<div id="messages" class="warning-message">'.get_lang('GraphicNotAvailable').'</div>','UTF-8');
+        $foo_img = api_convert_encoding('<div id="messages" class="warning-message">'.get_lang('GraphicNotAvailable').'</div>', 'UTF-8');
 
         return $foo_img;
     }