diff --git a/main/forum/editpost.php b/main/forum/editpost.php
index 48718a0004..ad72a332a6 100755
--- a/main/forum/editpost.php
+++ b/main/forum/editpost.php
@@ -125,11 +125,13 @@ $htmlHeadXtra[] = <<<JS
     </script>
 JS;
 
+
 if ($origin == 'learnpath') {
     Display::display_reduced_header();
 } else {
     Display::display_header();
 }
+
 /* Is the user allowed here? */
 
 // The user is not allowed here if
@@ -144,10 +146,7 @@ if (!api_is_allowed_to_edit(null, true) &&
     (($current_forum_category && $current_forum_category['visibility'] == 0) ||
         $current_forum['visibility'] == 0)
 ) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed();
 }
 
 if (!api_is_allowed_to_edit(null, true) &&
@@ -157,28 +156,20 @@ if (!api_is_allowed_to_edit(null, true) &&
         $current_thread['locked'] <> 0
     )
 ) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed();
 }
 
 if (!$_user['user_id'] && $current_forum['allow_anonymous'] == 0) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed();
 }
+
 $group_id = api_get_group_id();
 
 if (!api_is_allowed_to_edit(null, true) &&
     $current_forum['allow_edit'] == 0 &&
     !GroupManager::is_tutor_of_group(api_get_user_id(), $group_properties['iid'])
 ) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed();
 }
 
 // Action links
diff --git a/main/forum/forumfunction.inc.php b/main/forum/forumfunction.inc.php
index 74e335ce8b..2959f2ec03 100755
--- a/main/forum/forumfunction.inc.php
+++ b/main/forum/forumfunction.inc.php
@@ -3939,6 +3939,8 @@ function updateThreadInfo($thread_id, $last_post_id, $post_date)
  * This function is called when the user is not allowed in this forum/thread/...
  * @return bool display message of "not allowed"
  *
+ * @deprecated use api_not_allowed()
+ *
  * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  * @version february 2006, dokeos 1.8
  */
diff --git a/main/forum/iframe_thread.php b/main/forum/iframe_thread.php
index 3e11a0d440..6d3874a07c 100755
--- a/main/forum/iframe_thread.php
+++ b/main/forum/iframe_thread.php
@@ -51,11 +51,8 @@ $current_forum_category = get_forumcategory_information(
 
 // if the user is not a course administrator and the forum is hidden
 // then the user is not allowed here.
-if (!api_is_allowed_to_edit(false, true) AND ($current_forum['visibility'] == 0 OR $current_thread['visibility'] == 0)) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+if (!api_is_allowed_to_edit(false, true) && ($current_forum['visibility'] == 0 || $current_thread['visibility'] == 0)) {
+    api_not_allowed(false);
 }
 
 $course_id = api_get_course_int_id();
diff --git a/main/forum/viewpost.php b/main/forum/viewpost.php
index c2a99c707b..97b82d46b1 100755
--- a/main/forum/viewpost.php
+++ b/main/forum/viewpost.php
@@ -85,10 +85,7 @@ if ($origin == 'learnpath') {
 if (!api_is_allowed_to_edit(false, true) &&
     ($current_forum['visibility'] == 0 || $current_thread['visibility'] == 0)
 ) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed(false);
 }
 
 /* Actions */
diff --git a/main/forum/viewthread.php b/main/forum/viewthread.php
index 656662f40f..594a220c9b 100755
--- a/main/forum/viewthread.php
+++ b/main/forum/viewthread.php
@@ -113,10 +113,7 @@ if (
     !api_is_allowed_to_edit(false, true) &&
     ($current_forum['visibility'] == 0 || $current_thread['visibility'] == 0)
 ) {
-    $forum_allow = forum_not_allowed_here();
-    if ($forum_allow === false) {
-        exit;
-    }
+    api_not_allowed(false);
 }
 
 /* Actions */
@@ -220,7 +217,6 @@ if ($my_message != 'PostDeletedSpecial') {
     echo '</div>&nbsp;';
 
     /* Display Forum Category and the Forum information */
-
     if (!isset($_SESSION['view'])) {
         $viewMode = $current_forum['default_view'];
     } else {
diff --git a/tests/main/forum/forumfunction.inc.test.php b/tests/main/forum/forumfunction.inc.test.php
index a4a329a88a..d8e37ef6a0 100755
--- a/tests/main/forum/forumfunction.inc.test.php
+++ b/tests/main/forum/forumfunction.inc.test.php
@@ -487,7 +487,7 @@ class TestForumFunction extends UnitTestCase {
 		}
 		//var_dump($res);
 	 }
-	
+
 	 /**
 	* Retrieve all posts of a given thread
 	* @param int $thread_id integer that indicates the forum
@@ -1172,21 +1172,6 @@ class TestForumFunction extends UnitTestCase {
 		$this->assertTrue(is_null($res));
 		//var_dump($res);
 	}
-
-
- 	 /**
-	* This public function is called when the user is not allowed in this forum/thread/...
-	* @return bool display message of "not allowed"
-	*/
-
-	public function testforum_not_allowed_here() {
-		 ob_start();
-		 $res = forum_not_allowed_here();
-		 ob_end_clean();
-		 $this->assertTrue(is_bool($res));
-		 //var_dump($res);
-	 }
-
 	  /**
 	 * Delete the all the attachments from the DB and the file according to the post's id or attach id(optional)
 	 * @param post id