Setting up custom routing

Hi there,

I've tried to setup custom routing for the first time. To emulate the default behaviour, I've tried the following code. The only thing that works is the '/' option. If I try and load the other options, the URL in the address bar changes but the page doesn't. What am I missing? This code is in index.php.

Thanks.

    /**
     * Setup router
     */
    $di->set('router', function() {

        $router = new \Phalcon\Mvc\Router(false);

        $router->setDefaultController('index');
        $router->setDefaultAction('index');

        $router->add('/', array(
            "controller" => 'index',
            "action" => 'index'
        ));

        $router->add("/:controller/:action/:params", array(
            "controller" => 1,
            "action" => 2,
            "params" => 3
        ));

        $router->handle();

        return $router;

    });