app_dev.php.dist

<?php

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

$loader = require __DIR__.'/../app/autoload.php';
Debug::enable();

require_once __DIR__.'/../app/AppKernel.php';

$request = Request::createFromGlobals();

$env = (isset($_SERVER['HTTP_USER_AGENT']) &&
    (
        $_SERVER['HTTP_USER_AGENT'] === 'Symfony BrowserKit' || // Goutte
        strpos( $_SERVER['HTTP_USER_AGENT'],'HeadlessChrome') !== false // Selenium
    ) ? 'test' : 'dev');

$kernel = new AppKernel($env, true);
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);