phpinfo() action for the easy admin bundle

AdminController.php

<?php

// src/AppBundle/Controller/Admin/AdminController.php

namespace AppBundle\Controller\Admin;

use EasyCorp\Bundle\EasyAdminBundle\Controller\AdminController as BaseAdminController;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

/**
 * Extends the easy admin default controller for custom actions.
 *
 * @Route("/admin")
 */
class AdminController extends BaseAdminController
{
    /**
     * @Route("/phpinfo", name="easyadmin_phpinfo")
     */
    public function phpInfoAction(): Response
    {
        if ($this->container->has('profiler')) {
            $this->container->get('profiler')->disable();
        }
        ob_start();
        phpinfo();
        $str = ob_get_contents();
        ob_get_clean();

        return new Response($str);
    }
}