Sample of Silex

index.php

<?php
/*
 * Silex
 *
 * {
 *   "require": {
 *       "silex/silex": "~1.3"
 *   }
 * }
 */

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

$app = new Silex\Application();

$app->get('/', function() use($app) {
    return 'Hello world!';
});

$app->run();