diff --git a/main/lp/blank.php b/main/lp/blank.php
index d5e4bedbf0..bc6bec005f 100755
--- a/main/lp/blank.php
+++ b/main/lp/blank.php
@@ -21,24 +21,39 @@ $message = '';
 if (isset($_GET['error'])) {
     switch ($_GET['error']) {
         case 'document_deleted':
-            $message = Display::return_message(get_lang('DocumentHasBeenDeleted'), 'error');
+            $message = Display::return_message(
+                get_lang('DocumentHasBeenDeleted'),
+                'error'
+            );
             break;
         case 'prerequisites':
-            $message = Display::return_message(get_lang('LearnpathPrereqNotCompleted'), 'warning');
+            $message = Display::return_message(
+                get_lang('LearnpathPrereqNotCompleted'),
+                'warning'
+            );
             break;
         case 'document_not_found':
-            $message = Display::return_message(get_lang('FileNotFound'), 'warning');
+            $message = Display::return_message(
+                get_lang('FileNotFound'),
+                'warning'
+            );
             break;
         case 'reached_one_attempt':
-            $message = Display::return_message(get_lang('ReachedOneAttempt'), 'warning');
+            $message = Display::return_message(
+                get_lang('ReachedOneAttempt'),
+                'warning'
+            );
             break;
         case 'x_frames_options':
             $src = Session::read('x_frame_source');
             if (!empty($src)) {
-                $icon = '<em class="icon-play-sign icon-2x" aria-hidden="true"></em> ';
-
+                $icon = '<em class="icon-play-sign icon-2x" aria-hidden="true"></em>';
                 $message = Display::return_message(
-                    Display::url($icon.$src, $src, ['class' => 'btn generated', 'target' => '_blank']),
+                    Display::url(
+                        $icon.$src,
+                        $src,
+                        ['class' => 'btn generated', 'target' => '_blank']
+                    ),
                     'normal',
                     false
                 );
diff --git a/main/mySpace/myStudents.php b/main/mySpace/myStudents.php
index 3dec021bb5..f6abc82ffb 100755
--- a/main/mySpace/myStudents.php
+++ b/main/mySpace/myStudents.php
@@ -588,18 +588,20 @@ $userGroups = $userGroupManager->getNameListByUser(
         if (!empty($course_code)) {
         ?>
             <tr>
-                <td colspan="2"><?php
-                    echo Display::url(
-                        get_lang('SeeAccesses'),
-                        'access_details.php?'.http_build_query([
-                            'student' => $student_id,
-                            'course' => $course_code,
-                            'origin' => $origin,
-                            'cidReq' => $course_code,
-                            'id_session' => $sessionId
-                        ])
-                    );
-                    ?></td>
+                <td colspan="2">
+                <?php
+                echo Display::url(
+                    get_lang('SeeAccesses'),
+                    'access_details.php?'.http_build_query([
+                        'student' => $student_id,
+                        'course' => $course_code,
+                        'origin' => $origin,
+                        'cidReq' => $course_code,
+                        'id_session' => $sessionId
+                    ])
+                );
+                ?>
+                </td>
             </tr>
         <?php
         }
@@ -689,7 +691,10 @@ $userGroups = $userGroupManager->getNameListByUser(
             $isBoss = UserManager::userIsBossOfStudent(api_get_user_id(), $student_id);
             if ($isBoss || api_is_platform_admin()) {
                 $extraFieldValue = new ExtraFieldValue('user');
-                $value = $extraFieldValue->get_values_by_handler_and_field_variable($student_id, 'legal_accept');
+                $value = $extraFieldValue->get_values_by_handler_and_field_variable(
+                    $student_id,
+                    'legal_accept'
+                );
                 $icon = Display::return_icon('accept_na.png');
                 if (isset($value['value'])) {
                     list($legalId, $legalLanguageId, $legalTime) = explode(':', $value['value']);
diff --git a/main/session/add_students_to_session.php b/main/session/add_students_to_session.php
index 22188af7fe..509c3546ee 100644
--- a/main/session/add_students_to_session.php
+++ b/main/session/add_students_to_session.php
@@ -1,5 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
+
 /**
  *   @package chamilo.admin
  */
@@ -13,7 +14,10 @@ require_once __DIR__.'/../inc/global.inc.php';
 $this_section = SECTION_PLATFORM_ADMIN;
 
 // setting breadcrumbs
-$interbreadcrumb[] = array('url' => 'session_list.php', 'name' => get_lang('SessionList'));
+$interbreadcrumb[] = array(
+    'url' => 'session_list.php',
+    'name' => get_lang('SessionList')
+);
 
 // Setting the name of the tool
 $tool_name = get_lang('SubscribeStudentsToSession');
@@ -24,17 +28,19 @@ if (isset($_REQUEST['add_type']) && $_REQUEST['add_type'] != '') {
 $form_sent  = 0;
 $errorMsg   = '';
 $users = $sessions = array();
-$id = isset($_GET['id']) ? intval($_GET['id']) : null;
+$id = isset($_GET['id']) ? intval($_GET['id']) : 0;
 SessionManager::protectSession($id);
 
-$htmlResult = null;
-
+$htmlResult = '';
 if (isset($_POST['form_sent']) && $_POST['form_sent']) {
     $form_sent = $_POST['form_sent'];
     if ($form_sent == 1) {
         $sessionSourceList = $_POST['sessions'];
         $sessionDestinationList = $_POST['sessions_destination'];
-        $result = SessionManager::copyStudentsFromSession($sessionSourceList, $sessionDestinationList);
+        $result = SessionManager::copyStudentsFromSession(
+            $sessionSourceList,
+            $sessionDestinationList
+        );
         foreach ($result as $message) {
             $htmlResult .= $message;
         }
diff --git a/main/session/add_teachers_to_session.php b/main/session/add_teachers_to_session.php
index 37966947a8..c417055561 100644
--- a/main/session/add_teachers_to_session.php
+++ b/main/session/add_teachers_to_session.php
@@ -1,5 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
+
 /**
  *   @package chamilo.admin
  */
@@ -9,32 +10,37 @@ $cidReset = true;
 // including some necessary files
 require_once __DIR__.'/../inc/global.inc.php';
 
-// setting the section (for the tabs)
+// Setting the section (for the tabs)
 $this_section = SECTION_PLATFORM_ADMIN;
 
-// setting breadcrumbs
-//$interbreadcrumb[] = array('url' => 'index.php','name' => get_lang('PlatformAdmin'));
-$interbreadcrumb[] = array('url' => 'session_list.php', 'name' => get_lang('SessionList'));
+// Setting breadcrumbs
+$interbreadcrumb[] = array(
+    'url' => 'session_list.php',
+    'name' => get_lang('SessionList')
+);
 
 // Setting the name of the tool
 $tool_name = get_lang('EnrollTrainersFromExistingSessions');
 
-$form_sent  = 0;
-$errorMsg   = '';
+$form_sent = 0;
+$errorMsg = '';
 $id = intval($_GET['id']);
 
 SessionManager::protectSession($id);
 
-$htmlResult = null;
-
+$htmlResult = '';
 if (isset($_POST['form_sent']) && $_POST['form_sent']) {
     $form_sent = $_POST['form_sent'];
 
-    if ($form_sent == 1 && isset($_POST['sessions']) && isset($_POST['courses'])) {
+    if ($form_sent == 1 &&
+        isset($_POST['sessions']) && isset($_POST['courses'])
+    ) {
         $sessions = $_POST['sessions'];
         $courses = $_POST['courses'];
-
-        $htmlResult = SessionManager::copyCoachesFromSessionToCourse($sessions, $courses);
+        $htmlResult = SessionManager::copyCoachesFromSessionToCourse(
+            $sessions,
+            $courses
+        );
     }
 }
 
diff --git a/tests/scripts/fix_course_index.php b/tests/scripts/fix_course_index.php
index 67e6ef3e0a..1cd21c48ab 100644
--- a/tests/scripts/fix_course_index.php
+++ b/tests/scripts/fix_course_index.php
@@ -1,7 +1,7 @@
 <?php
 /* For license terms, see /license.txt */
 /**
- * This script allows you to update all the paths in the 
+ * This script allows you to update all the paths in the
  * courses/[CODE]/index.php files when you change your Chamilo installation
  * or create a copy somewhere.
  * How to use:
@@ -20,17 +20,17 @@ $list = scandir($dir);
 $originalPath = 'original.path.com';
 $destinationPath = 'destination.path.com';
 foreach ($list as $entry) {
-  if (substr($entry, 0, 1) == '.') {
-    continue;
-  }
-  if (!is_dir($dir . '/' . $entry)) {
-    continue;
-  }
-  if (!is_file($dir . '/' . $entry . '/index.php')) {
-    continue;
-  }
-  $file = file_get_contents($dir . '/' . $entry . '/index.php');
-  $file = preg_replace('/' . $originalPath . '/', $destinationPath, $file);
-  file_put_contents($dir . '/' . $entry . '/index.php', $file);
-  //die($entry);
+    if (substr($entry, 0, 1) == '.') {
+        continue;
+    }
+    if (!is_dir($dir.'/'.$entry)) {
+        continue;
+    }
+    if (!is_file($dir.'/'.$entry.'/index.php')) {
+        continue;
+    }
+    $file = file_get_contents($dir.'/'.$entry.'/index.php');
+    $file = preg_replace('/'.$originalPath.'/', $destinationPath, $file);
+    file_put_contents($dir.'/'.$entry.'/index.php', $file);
+    //die($entry);
 }