Devaneios. Microframework baseado no Zend2

gistfile1.php

<?php

use Picoznd/Session;
use Picoznd/Http/Request;
use Picoznd/Http/Response;
use Picoznd/Http/Response/CacheControl;
use Picoznd/IoC/Inject/Bag as InjectBag;
use Picoznd/Http/Request/Params as ParamsBag;

class Index
{
    function __construct(Session $session, Response $response) {
        $this->session  = $session;
        $this->response = $response;
    }

    public function get(CacheControl $cache, InjectBag $inject) {
        $this->response['content_type'] = array('html', 'xml');
        $cache->setPublic()->setMustRevalidate()->setMaxAge(60);

        return $inject['news']->getLastCreated(30);
    }
};

class News
{
    function __construct(Response $response, ParamsBag $param) {
        $this->response = $response;

        $param->validate('slug', '[a-z0-9\_]', 'get');

        /** OR **/
        $param->sanitize('slug', function($val) {
            return preg_replace('/[a-z0-9\_]+/', '$1', $val);
        }, 'get');
    }

    public function get($slug, CacheControl $cache, InjectBag $inject) {
        $this->response['content_type'] = array('html', 'xml');
        $cache->setPublic()->setMustRevalidate()->setMaxAge(60);

        return $inject['news']->getBySlug($slug);
    }
};

/** **/
$app = new Picoznd();
$app->mount(new Index, null, true); // true sets default
$app->mount(new News, '/news_pt'); // if route != 'news' (classname)
$app->run();