Fuel\Event\EventTrait::trigger PHP Method

    public function trigger($event, $arguments = array())
    {
        // Check for self prepend
        $this->_eventPrependSelf and array_unshift($arguments, $this);
        // Add the event type
        array_unshift($arguments, $event);
        // When a container is set
        if ($this->_eventContainer) {
            // Add the event to the container
            call_user_func_array(array($this->_eventContainer, 'trigger'), $arguments);
        }
        // Remain chainable
        return $this;
    }