What's the meaning of @var in php comments

Question

I see this (@var) in php comments a lot and have no clue what it means. Please tell.

// example.php (taken from yii framework application code)



        

Answer 1

It is in an inline type hint.

e.g.

/* @var bool */
$switch

In this case it means $this is of type CategoriesController and $data is of type Categories

Often used by IDEs for type hinting.