app.php

<?php

use Symfony\Component\Debug\Debug;
use Symfony\Component\HttpFoundation\Request;

$env = getenv('SYMFONY_ENV') ?: 'prod';
$debug = getenv('SYMFONY_DEBUG') === '1';

if (isset($_SERVER['HTTP_HOST']) && substr_count($_SERVER['HTTP_HOST'], '.localhost')) {
    $env = 'dev';
    $debug = true;
}

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

if ($debug) {
    Debug::enable();
}

// Enable APC for autoloading to improve performance.
// You should change the ApcClassLoader first argument to a unique prefix
// in order to prevent cache key conflicts with other applications
// also using APC.
/*
$apcLoader = new Symfony\Component\ClassLoader\ApcClassLoader(sha1(__FILE__), $loader);
$loader->unregister();
$apcLoader->register(true);
*/

$kernel = new AppKernel($env, $debug);
//$kernel = new AppCache($kernel);

// When using the HttpCache, you need to call the method in your front controller instead of relying on the configuration parameter
//Request::enableHttpMethodParameterOverride();
$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);