Resque\Socket\Server::listen PHP Method

listen() public method

Adds a function to be called whenever a certain action happens
public listen ( string $event, mixed $callback ) : true
$event string Name of event to listen on.
$callback mixed Any callback callable by call_user_func_array.
return true
    public function listen($event, $callback)
    {
        if (!isset($this->events[$event])) {
            $this->events[$event] = array();
        }
        $this->events[$event][] = $callback;
        return true;
    }