azurre/php-event-dispatcher

EventDispatcher Component

0.2 2020-06-25 16:21 UTC

Requires

• php: >=7.2.0
• psr/event-dispatcher: ^1.0

MIT

• Alex Milenin

• event
• dispatcher
• psr-14

README

Simple implementation of Event Dispatcher

Installation

Install composer in your project:

curl -s https://getcomposer.org/installer | php

Require the package with composer:

composer require azurre/php-event-dispatcher

Usage

The Dispatcher

$loader = require_once __DIR__ . '/vendor/autoload.php';

use Azurre\EventDispatcher\Dispatcher;
use Azurre\EventDispatcher\Event;

$dispatcher = new Dispatcher();
$dispatcher->attachListener(new Logger());
// ...
// Do something
// ...
$event = new Event('my.event', new MyObject());
$dispatcher->dispatch($event);
$someData = $event->getData('some_data');

Listener

class Logger implements \Azurre\EventDispatcher\ListenerInterface
{
    public function getKey(): string
    {
        return 'my.event.logger';
    }

    public function getListenedEvents(): array
    {
        return ['my.event', 'my.another.event'];
    }

    public function execute(\Azurre\EventDispatcher\EventInterface $event): void
    {
        switch ($event->getKey()) {
            case 'my.event':
                // Modify data
                $data = $event->getData();
                $data->setIsLogged(true);
                $event->setData('some_data', [1,2,3]);
            break;
            case 'my.another.event':
                // Do another things
            break;
        }
    }
}

License

MIT