common\components\Controller::beforeAction PHP Method

    public function beforeAction($action)
    {
        if (parent::beforeAction($action)) {
            return true;
        } else {
            return false;
        }
    }

 public function beforeAction($action)
 {
     if (Yii::$app->user->isGuest) {
         Yii::$app->getResponse()->redirect(\Yii::$app->getUser()->loginUrl)->send();
     }
     return parent::beforeAction($action);
 }