silex with cookie

index.php

<?php
require __DIR__ .'/silex.phar';

use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Cookie;

$app = new Silex\Application();

$app['debug'] = true;

$app->get('/', function() {
    $response = new Response('hello');
    $cookie = new Cookie('name', 'value');
    $response->headers->setCookie($cookie);
    return $response;
});

$app->run();