Redirect to the same or different controller-view after a POST request

We can redirect the user to the same view (referrer view) or a different controller action by using the redirect method.

return $this->redirect(['controller/view','key'=>'value']);

OR

Yii::app()->request->redirect('controller/action');

If you want to maintain the flash messages set from the controller, you must use the return keyword. Otherwise, flash messages won’t work.