Prototype of a Symfony2 PHP securitycontext filter helper

symfony-security-filter.php

<?php
class SomeController {

    private function filterSecurityContext($action, $items){
        $user = $this->get('security.context')->getToken()->getUser();
        $results = array();
        foreach($items as $item){
                if($this->get('security.context')->isGranted($action, $item)){
                        $results[] = $item;
                }
        }
        return $results;
    }

}