TWIG MD5 extension for Symfony

Md5.php

<?php

namespace Vendor\Bundle\Twig;

/*
services.yml:
twig.md5:
    class: Vendor\Bundle\Twig\Md5
    tags :
        - { name: twig.extension }
 */


class Md5 extends \Twig_Extension {

    public function getFilters(){
        return array(
            new \Twig_SimpleFilter('md5', 'md5')
        );
    }

    public function getName(){
        return "md5_hash";
    }
}