ControllerResolver.php

<?php

use Silex\ControllerResolver as BaseControllerResolver;

/**
 * Injects container into controllers.
 *
 * @author Саша Стаменковић <umpirsky@gmail.com>
 */
class ControllerResolver extends BaseControllerResolver
{
    /**
     * {@inheritdoc}
     */
    protected function createController($controller)
    {
        $callable = parent::createController($controller);

        $callable[0]->setContainer($this->app);

        return $callable;
    }
}