src/event/EventMediator.php
public function trigger($eventType, $data = array())
    {
        $this->_isStop = false;
        foreach ($this->_eventListeners as $eventListener) {
            if ($this->_isStop) {
                break;
            }
            if ($eventListener->getType() == $eventType) {
                call_user_func_array($eventListener->getListener(), $data);
            }
        }
    }
public function trigger($eventType, $data = array())
    {
        $this->_isStop = false;
        foreach ($this->_eventListeners as $eventListener) {
            if ($this->_isStop) {
                break;
            }
            if ($eventListener->getType() == $eventType) {
                call_user_func_array($eventListener->getListener(), $data);
            }
        }
    }
Dispatches an event.

@param string $eventType Event type or a list of event types
@param array  $data      Additional data (not required)

@return void