PHP code example of systream / event-dispatcher

1. Go to this page and download the library: Download systream/event-dispatcher library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

systream / event-dispatcher example snippets


$eventDispatcher = new EventDispatcher();

$subscription = new EventDispatcher\Subscription('nameOfEvent', function (EventInterface $event) {
	// do stuff here
});
$eventDispatcher->subscribe($subscription);


$eventDispatcher = new EventDispatcher();
$eventDispatcher->emit(new EventDispatcher\Event('nameOfEvent'));



$eventDispatcher = new EventDispatcher();

$subscription = new EventDispatcher\Subscription('fooBar', function (EventDispatcher\EventInterface $event) {
	$event->stopPropagation();
});
$eventDispatcher->subscribe($subscription);

$subscription2 = new EventDispatcher\Subscription('fooBar', function (EventDispatcher\EventInterface $event) {
	// do stuff here
});
$eventDispatcher->subscribe($subscription2);

$eventDispatcher->emit(new EventDispatcher\Event('fooBar'));



class MyCustomEvent extends AbstractEvent implements EventInterface
{

	/**
	 * @var string
	 */
	protected $key = 'order.save';

	/**
	 * @var Order
	 */
	protected $order;

	/**
	 * @param string $key
	 */
	public function __construct(Order $order)
	{
		$this->order = $order;
	}

	/**
	 * @return Order
	 */
	public function getOrder()
	{
		return $this->order;
	}
}

...

$eventDispatcher = new EventDispatcher();
$subscription = new EventDispatcher\Subscription('nameOfEvent', function (OrderEvent $event) {
	$order = $orderEvent->getOrder();
	// do stuff
});
$eventDispatcher->subscribe($subscription);