<?php

use Symfony\Component\HttpFoundation\Request;

$request = Request::createFromGlobals();

// Returns the preferred language
$preferredLang = $request->getPreferredLanguage();

// Languages acceptable by the client browser
$languages = $request->getLanguages();

dump($preferredLang, $languages);

^ null

^ []

• Symfony DI Container outside Symfony
• Create a function for Symfony ExpressionLanguage
• Yaml indentation is a part of its structure. That's actually bad

PHP 8.3, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8