Fix PHP errors

public/main/inc/lib/sessionmanager.lib.php

@@ -1632,6 +1632,7 @@ class SessionManager
         $sendSubscriptionNotification = false,
         $status = 0
     ) {
+        $id = (int) $id;
         $status = (int) $status;
         $coachId = (int) $coachId;
         $sessionCategoryId = (int) $sessionCategoryId;
@@ -1679,7 +1680,7 @@ class SessionManager
         } else {
             $sessionInfo = self::get_session_by_name($name);
             $exists = false;
-            if (!empty($sessionInfo) && $sessionInfo['id'] !== $id) {
+            if (!empty($sessionInfo) && (int) $sessionInfo['id'] !== $id) {
                 $exists = true;
             }
 

public/main/mySpace/myStudents.php

@@ -1576,7 +1576,7 @@ if (empty($details)) {
         /** @var CLpCategory $item */
         foreach ($categories as $item) {
             $categoryId = $item->getIid();
-            if (!learnpath::categoryIsVisibleForStudent($item, $userEntity, $courseId, $sessionId)) {
+            if (!learnpath::categoryIsVisibleForStudent($item, $userEntity, $course, $session)) {
                 continue;
             }
 

public/main/session/session_edit.php

@@ -2,9 +2,6 @@
 
 /* For licensing terms, see /license.txt */
 
-/**
- * Sessions edition script.
- */
 $cidReset = true;
 require_once __DIR__.'/../inc/global.inc.php';