Silex Middlewares - a PHP only (non YAML, non annotated) implementation of Symfony KernelEvents and even dispatching

README.md

1. The Silex\Application loads the 'route_factory', which returns an instance of a Silex\Route.
2. When mounted in a Silex\ControllerCollection, it accepts Middlewares attached to before() or after() methods. Those are actually Options for the Symfony\..\Route Component.
3. Attached are MiddlewareListeners

So in Silex, this:

// ex. #1
$app['controllers']->before( 'callback', APPLICATION::EARLY_EVENT );

// ex. #2
$app['controllers']->after( 'callback', Application::LATE_EVENT );

is equal to

// use Symfony\Component\HttpKernel\KernelEvents;

// #1
$app->on( KernelEvents::REQUEST, 'callback' );

// #2
$app->on( KernelEvents::TERMINATE, 'callback' );

and works without annotations or YAML.