public function delete($key) {
        if (isset($_COOKIE[$key])) {
            unset($_COOKIE[$key]);
            setcookie($key, '', time() - 3600);
        }
    }
public function delete($key) {
        if (isset($_COOKIE[$key])) {
            unset($_COOKIE[$key]);
            setcookie($key, '', time() - 3600);
        }
    }
public function delete ( $ key ) { if ( isset ( $ _COOKIE [ $ key ] ) ) { unset ( $ _COOKIE [ $ key ] ) ; setcookie ( $ key , '' , time ( ) - 3600 ) ; } }
Remove variable from storage

@see SessionInterface::delete
Remove variable from storage