after-controller-response hooks in Symfony2

symfony-post-controller-hook.php

<?php
    public function myPostControllerFunction($someObject) {
        $dispatcher = $this->get('event_dispatcher');
        $logger = $this->get('logger');

        $dispatcher->addListener('kernel.terminate', function ($event) use ($logger, $someObject) {
            $logger->warning('This log entry was generated after Kernel Terminate and was passed an object of class: '.get_class($someObject));
        });
    }