EventDispatcher

This module is old, crappy and unmaintained, so please don't use it :)

Easily attach listeners to ZF2's MVC events., _(*1)

Installation

Add "mikemix/eventdispatcher": "1.*" to your composer.json file
Run php composer.phar self-update && php composer.phar update
Add module EventDispatcher to your application modules in the application.config.php file
Copy file vendor/mikemix/eventdispatcher/config/event_dispatcher.global.php.dist to the config/autoload/event_dispatcher.global.php

Congratulations. You are done and the library has been successfully installed (hope so). To subscribe to a mvc event, it is as simple as adding a name of your listener service name to the event_dispatcher.global.php file. The name must be recognized by the service manager., _(*2)

Example configuration

File config/autoload/event_dispatcher.config.php, _(*3)

return array(
    'event_dispatcher' => array(
        'dispatch' => array(
            // dispatch listeners here
            'myDispatchListener'       # <----------------- NOTICE
        ),
        'dispatch.error' => array(
            // dispatch.error listeners here
        ),
        'finish' => array(
            // finish listeners here
        ),
        'render' => array(
            // render listeners here
        ),
        'render.error' => array(
            // render.error listeners here
        ),
        'route' => array(
            // route listeners here
        ),
    ),
);

File module/Application/config/module.config.php, _(*4)

// ...
'service_manager' => array(
    // ...

    'invokables' => array(
        'myDispatchListener' => 'Application\Listener\DispatchListener',
    ),
),

File module/Application/src/Application/Listener/DispatchListener.php. For your convienience and type hinting in the editor of your choice, you can make listener implement the ListenerInterface interface, but you are not obliged to. Just make sure an onEvent() method is callable., _(*5)

<?php
namespace Application\Listener;

use EventDispatcher\Listener\ListenerInterface;

class DispatchListener implements ListenerInterface
{
    public function onEvent(EventInterface $event)
    {
        printf('Well hello, a %s event was called', $event->getName());
    }
}

Valuable resources about ZF2 events on the net

http://framework.zend.com/manual/2.3/en/modules/zend.mvc.mvc-event.html
http://www.michaelgallego.fr/blog/2013/05/12/understanding-the-zend-framework-2-event-manager/
http://mwop.net/blog/266-Using-the-ZF2-EventManager.html