composer.json

{
    "require": {
        "silex/silex": "1.0.*@dev"
    }
}

foobar.php

<?php
 
namespace Foo;

use Silex;
use Silex\ControllerProviderInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

class Bar implements ControllerProviderInterface
{
    public function connect(Silex\Application $app)
    {
        $ctr = $app['controllers_factory'];
        
        $ctr->match("/test", array($this, 'dothis'));
        $ctr->match('/hello/{name}', array($this, 'hello'));

        return $ctr;

    }

    public function dothis(Request $request, Silex\Application $app)
    {

        return 'Het werkt, naam is ' . $app['naam'];
 
    }

    public function hello(Silex\Application $app, $name) {

        return 'Hello '.$name.'!';

    }

}

index.php

<?php

require_once __DIR__.'/../vendor/autoload.php';
require_once __DIR__.'/foobar.php';

$app = new Silex\Application();
$app['debug'] = true;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\HttpKernelInterface;

// Even een 'naam' zetten, om te testen dat in je eigen controllers de $app
// nog beschikbaar is: 
$app['naam'] = "pompidom";

/*
ROUTE THINGS
*/
$app->get('/', function () use ($app) {
    return $app->redirect('/hello/Reinier');
});

$app->mount('', new Foo\Bar());

$app->run();

?>