How can Yii do the opposite of Yii::app()->user->checkAccess('3')?

Question

Yii

Followed the recipe yiiframework.ru/doc/cookbook/ru/access.rbac.file . Only changed the array keys in auth.php to integer indexes, but this one:

if(Yii::app()->user->checkAccess('3')){
    echo "hello, I'm administrator";
}

Does not exceed . I would like to see what lies in this accessory, please help.

Answer 1

Only changed array keys in auth.php ha integer indexes

what for?
look