<?php

namespace FooBundle;

use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;

// extension class of your bundle
class MyBundleExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        // your extension stuff like services
    }
}


$containerBuilder = new ContainerBuilder();
$extension = new MyBundleExtension();
$containerBuilder->registerExtension($extension);

$loader = new ClosureLoader($containerBuilder);

// add your config values to container (can happen in AppKernel)
$loader->load(function ($containerBuilder) {
    $containerBuilder->loadFromExtension('my_bundle', array(
        'key' => 'value',
    ));
});

// is your bundle config of ClosureLoader present?
$myBundleConfig = $containerBuilder->getExtensionConfig('my_bundle');

dump($myBundleConfig);

^ array:1 [

  0 => array:1 [

    "key" => "value"

  ]

]

• Easy accessing of properties or/and key-value pairs
• Sorting files by their properties with Symfony's SortableIterator
• Progress bars in Symfony commands

PHP 8.2, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8