<?php class EventDispatcher{function r($e, ListenerInterface $l){$this->e[$e][] = $l;} function d($e){foreach ($this->e[$e] as $l){$l->o();}}} class ListenerInterface{function o();} class MyListener{function o(echo '*';)} $l = new MyListener(); $e = new EventDispatcher(); $e->r('1', $l); $e->r('1', $l); $e->r('2', $l); $e->d();
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