for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
declare( strict_types = 1 );
namespace WMDE\Fundraising\Frontend\Infrastructure\EventHandling;
use WMDE\Fundraising\DonationContext\Domain\Event as DonationEvent;
use WMDE\Fundraising\MembershipContext\Domain\Event as MembershipEvent;
class EventDispatcher {
/**
* @var callable[][]
*/
protected array $listeners = [];
public function addEventListener( string $eventClassName, callable $listener ): self {
assert( class_exists( $eventClassName ) );
if ( empty( $this->listeners[$eventClassName] ) ) {
$this->listeners[$eventClassName] = [];
}
$this->listeners[$eventClassName][] = $listener;
return $this;
* @param DonationEvent|MembershipEvent $event
public function dispatch( $event ): void {
$eventName = get_class( $event );
if ( empty( $this->listeners[$eventName] ) ) {
return;
array_map( fn( $handler ) => \call_user_func( $handler, $event ), $this->listeners[$eventName] );
wmde /
FundraisingFrontend
