Removing a $_SESSION entity if values = X

[Freedom-n-Democrazy]

Is there a way to make it How can I go about removing a $_SESSION entity if certain array values of it equal a specific value? I am thinking something along the lines of this:

 

if (isset($_SESSION['cart']['content'][$_POST['id']])) = array ('sizes' => 0, 'sizem' => 0, 'sizel' => 0, 'sizexl' => 0) {
// remove $_SESSION['cart']['content'][$_POST['id']]
}

[ManiacDan]

You'll have to use a loop to check all these keys one at a time, deleting the item and BREAKing out of the loop when you find a match.