Kernel.php

<?php

namespace PHPPM\Tests\Fixtures\Symfony;

use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
use Symfony\Component\Config\Loader\LoaderInterface;
use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;

class Kernel extends \Symfony\Component\HttpKernel\Kernel
{
    use MicroKernelTrait;

    const CONFIG_EXTS = '.{php,xml,yaml,yml}';

    public function registerBundles(): iterable
    {
        $contents = require $this->getProjectDir() . '/config/bundles.php';
        foreach ($contents as $class => $envs) {
            if (isset($envs['all']) || isset($envs[$this->environment])) {
                yield new $class();
            }
        }
    }

    protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader)
    {
        $container->addResource(new FileResource($this->getProjectDir() . '/config/bundles.php'));
        // Feel free to remove the "container.autowiring.strict_mode" parameter
        // if you are using symfony/dependency-injection 4.0+ as it's the default behavior
        $container->setParameter('container.autowiring.strict_mode', true);
        $container->setParameter('container.dumper.inline_class_loader', true);
        $confDir = $this->getProjectDir() . '/config';

        $loader->load($confDir . '/{services}' . self::CONFIG_EXTS, 'glob');
    }

    protected function configureRoutes(RoutingConfigurator $routes)
    {
        $confDir = $this->getProjectDir() . '/config';

        $routes->import($confDir . '/{routes}' . self::CONFIG_EXTS);
    }

    public function getProjectDir(): string
    {
        return __DIR__;
    }
}