Simple pipeline middleware like for closures

pipefy.php

<?php

$pipeline = [];

$pipeline['first_pipe'] = function (array $params, callable $next) {
    echo "first pipe\n";

    $params['first_pipe_part_1'] = true;
    print_r($params);

    $params = $next($params);

    echo "real last! >D\n";

    $params['first_pipe_part_2'] = true;
    print_r($params);

    return $params;
};

$pipeline['second_pipe'] = function (array $params, callable $next) {
    echo "second pipe\n";

    $params['second_pipe'] = true;
    print_r($params);

    return $next($params);
};

$pipefy = function (callable $stack, $pipes = []) use ($pipeline) {
    $stackOn = function ($stack, $next) {
        return function (array $params) use ($next, $stack) {
            return $next($params, $stack);
        };
    };

    foreach (array_reverse($pipes) as $pipe) {
        $stack = $stackOn($stack, $pipeline[$pipe]);
    }

    return $stack;
};

$main = function (array $params) {
    echo "at last!!!! ouch, maybe not ...\n";

    $params['last_pipe'] = true;
    print_r($params);

    return $params;
};

$boom = $pipefy($main, ['first_pipe', 'second_pipe']);
$boom(['normal_param' => true]);