PHP notice

Undefined index: HTTP_REFERER

/var/www/clients/client4/web4/web/protected/application/controllers/frontend/LanguageController.php(7)

01 <?php
02 
03     class LanguageController extends CFrontendController {
04         
05         public function actionBg() {
06             Yii::app()->session['language'] = 'bg';
07             Yii::app()->request->redirect($_SERVER['HTTP_REFERER']);
08         }
09         
10         public function actionEn() {
11             Yii::app()->session['language'] = 'en';
12             Yii::app()->request->redirect($_SERVER['HTTP_REFERER']);
13         }
14         
15     }

Stack Trace

#7
+
 /var/www/clients/client4/web4/web/index.php(18): CApplication->run()
2024-03-19 09:30:44 Apache Yii Framework/1.1.17