Fix PHP deprecations Required parameter (x) follows optional parameter

main/inc/lib/sessionmanager.lib.php

@@ -796,8 +796,8 @@ class SessionManager
      * @return array table with user name, lp name, progress
      */
     public static function get_session_lp_progress(
-        $sessionId = 0,
-        $courseId = 0,
+        $sessionId,
+        $courseId,
         $date_from,
         $date_to,
         $options
@@ -917,9 +917,9 @@ class SessionManager
      * @return array table with user name, lp name, progress
      */
     public static function get_survey_overview(
-        $sessionId = 0,
-        $courseId = 0,
-        $surveyId = 0,
+        $sessionId,
+        $courseId,
+        $surveyId,
         $date_from,
         $date_to,
         $options
@@ -1390,7 +1390,7 @@ class SessionManager
         $profile = '',
         $date_from = '',
         $date_to = '',
-        $options
+        $options = []
     ) {
         $sessionId = intval($sessionId);
         $courseId = intval($courseId);

main/inc/lib/usermanager.lib.php

@@ -1460,8 +1460,8 @@ class UserManager
         $firstname,
         $lastname,
         $username,
-        $password = null,
-        $auth_source = null,
+        $password,
+        $auth_source,
         $email,
         $status,
         $official_code,

main/inc/lib/userportal.lib.php

@@ -2427,7 +2427,7 @@ class IndexManager
     private static function getHtmlForCourse(
         $courseInfo,
         $userCategoryId,
-        $displayButton = false,
+        $displayButton,
         $loadDirs
     ) {
         if (empty($courseInfo)) {