Basic functionality

app/domain/Order/Event/OrderCreated.php

@@ -0,0 +1,25 @@
+<?php declare(strict_types = 1);
+
+namespace App\Domain\Order\Event;
+
+use Symfony\Contracts\EventDispatcher\Event;
+
+final class OrderCreated extends Event
+{
+
+	public const NAME = 'order.created';
+
+	/** @var string */
+	private $order;
+
+	public function __construct(string $order)
+	{
+		$this->order = $order;
+	}
+
+	public function getOrder(): string
+	{
+		return $this->order;
+	}
+
+}

app/domain/Order/OrderLogSubscriber.php

@@ -0,0 +1,42 @@
+<?php declare(strict_types = 1);
+
+namespace App\Domain\Order;
+
+use App\Domain\Order\Event\OrderCreated;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Tracy\Debugger;
+
+class OrderLogSubscriber implements EventSubscriberInterface
+{
+
+	/**
+	 * @return mixed[]
+	 */
+	public static function getSubscribedEvents(): array
+	{
+		return [
+			OrderCreated::NAME => [
+				['onOrderCreatedBefore', 100],
+				['onOrderCreated', 0],
+				['onOrderCreatedAfter', -100],
+			],
+		];
+	}
+
+	public function onOrderCreatedBefore(OrderCreated $event): void
+	{
+		Debugger::barDump('BEFORE');
+	}
+
+	public function onOrderCreated(OrderCreated $event): void
+	{
+		Debugger::log($event, 'info');
+		Debugger::barDump($event);
+	}
+
+	public function onOrderCreatedAfter(OrderCreated $event): void
+	{
+		Debugger::barDump('AFTER');
+	}
+
+}