Yii::app()->user->isGuest always returns true even though login was successful in yii

Maybe you can try to debug harder: change messages to something like this:

<?php 
    if(Yii::app()->user->isGuest) {
        print("Welcome back Guest!");
        print("Your id is ".Yii::app()->user->id);
    }
}?>

Yii::app()->user->isGuest always returns true even though login was successful in yii