Queue.php

<?php
declare(strict_types=1);

namespace Ion\Http\Middleware;

use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;

class Queue extends \SplQueue
{


    public function __invoke(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {

        if (count($this) < 1)
            return $response;

        var_dump("Running middleware with ".count($this)." middlewares");

        $middleware = $this->dequeue();
        $response = $middleware($request, $response, $this);

        return $response;
    }
}