Online PHP editor | output for mmPmr

<?php class Signal() { private $listeners; function add($callback) { $this->listeners[]=$callback; } function dispatch() { if (empty($this->listeners)) { return; } foreach ($this->listeners as $callback) { call_user_func_array($callback, func_get_args()); } } } function myListener() { print_r(func_get_args()); } $signal = new Signal(); $signal->add('myListener'); $signal->add('myListener'); $signal->add('myListener'); $signal->dispatch('a',456,array(123));