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<?php class Mediator { protected $events = array(); public function attach($eventName, $callback) { if (!isset($this->events[$eventName])) { $this->events[$eventName] = array(); } $this->events[$eventName][] = $callback; } public function trigger($eventName, $data = null) { foreach ($this->events[$eventName] as $callback) { $callback($eventName, $data); } } } ?>
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