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<?php class EventDispatcher{function r($e, ListenerInterface $l){$this->e[$e][] = $l;} function d($e){foreach ($this->e[$e] as $l){$l->o();}}} interface ListenerInterface{function o();} class MyListener implements ListenerInterface{function o(){echo '*';}} $l = new MyListener(); $e = new EventDispatcher(); $e->r('1', $l); $e->r('1', $l); $e->r('2', $l); $e->d();
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property EventDispatcher::$e is deprecated in /in/IpAAK on line 2 Fatal error: Uncaught ArgumentCountError: Too few arguments to function EventDispatcher::d(), 0 passed in /in/IpAAK on line 13 and exactly 1 expected in /in/IpAAK:2 Stack trace: #0 /in/IpAAK(13): EventDispatcher->d() #1 {main} thrown in /in/IpAAK on line 2
Process exited with code 255.

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