diff --git a/main/inc/ajax/admin.ajax.php b/main/inc/ajax/admin.ajax.php
index c7bd8a2eec..08da1ee7dd 100644
--- a/main/inc/ajax/admin.ajax.php
+++ b/main/inc/ajax/admin.ajax.php
@@ -12,29 +12,29 @@ api_protect_admin_script();
 $action = isset($_REQUEST['a']) ? $_REQUEST['a'] : null;
 
 switch ($action) {
-	case 'update_changeable_setting':        
+    case 'update_changeable_setting':
         $url_id = api_get_current_access_url_id();
-        
-        if (api_is_global_platform_admin() && $url_id == 1) {            
-            if (isset($_GET['id']) && !empty($_GET['id'])) {                
+
+        if (api_is_global_platform_admin() && $url_id == 1) {
+            if (isset($_GET['id']) && !empty($_GET['id'])) {
                 $params = array('variable = ? ' =>  array($_GET['id']));
-                $data = api_get_settings_params($params);                
+                $data = api_get_settings_params($params);
                 if (!empty($data)) {
-                    foreach ($data as $item) {                
+                    foreach ($data as $item) {
                         $params = array('id' =>$item['id'], 'access_url_changeable' => $_GET['changeable']);
-                        api_set_setting_simple($params);        
+                        api_set_setting_simple($params);
                     }
-                }                
+                }
                 echo '1';
-            }        
+            }
         }
         break;
-        
+
     case 'version':
         echo version_check();
         break;
 }
-    
+
 
 /**
  * Displays either the text for the registration or the message that the installation is (not) up to date
@@ -44,7 +44,8 @@ switch ($action) {
  * @version august 2006
  * @todo have a 6monthly re-registration
  */
-function version_check() {
+function version_check()
+{
     $tbl_settings = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
     $sql = 'SELECT selected_value FROM  '.$tbl_settings.' WHERE variable="registered" ';
     $result = Database::query($sql);
@@ -75,7 +76,8 @@ function version_check() {
  * @copyright (C) 2001 The phpBB Group
  * @return language string with some layout (color)
  */
-function check_system_version() {
+function check_system_version()
+{
     global $_configuration;
     $system_version = trim($_configuration['system_version']); // the chamilo version of your installation
 
@@ -85,7 +87,7 @@ function check_system_version() {
 
         // The number of users
         $number_of_users = statistics::count_users();
-        $number_of_active_users = statistics::count_users(null,null,null,true);
+        $number_of_active_users = statistics::count_users(null, null, null, true);
 
         $data = array(
             'url' => api_get_path(WEB_PATH),
@@ -133,7 +135,8 @@ function check_system_version() {
  * @param bool   Include HTTP Request headers?
  * @param bool   Include HTTP Response headers?
  */
-function _http_request($ip, $port = 80, $uri = '/', $getdata = array(), $timeout = 1, $req_hdr = false, $res_hdr = false) {
+function _http_request($ip, $port = 80, $uri = '/', $getdata = array(), $timeout = 1, $req_hdr = false, $res_hdr = false)
+{
     $verb = 'GET';
     $ret = '';
     $getdata_str = count($getdata) ? '?' : '';
@@ -153,7 +156,9 @@ function _http_request($ip, $port = 80, $uri = '/', $getdata = array(), $timeout
 
     $req .= $crlf;
 
-    if ($req_hdr) { $ret .= $req; }
+    if ($req_hdr) {
+        $ret .= $req;
+    }
     if (($fp = @fsockopen($ip, $port, $errno, $errstr, $timeout)) == false) {
         return "Error $errno: $errstr\n";
     }