#### 事件綁定 ~~~php use lying\db\ActiveRecord; use lying\service\Event; Event::on(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE, function (Event $event) { var_dump($event->_sender); }, '綁定時的額外數據'); //事件默認是插入到隊列的結尾的，如果要把事件插入到隊列首位 Event::on(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE, function (Event $event) { var_dump($event->_sender); }, '綁定時的額外數據', false); ~~~ #### 觸發事件 ~~~php use lying\db\ActiveRecord; use lying\service\Event; Event::trigger(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE); Event::trigger(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE, new Event()); ~~~ #### 卸載事件 ~~~php use lying\db\ActiveRecord; use lying\service\Event; $call = function (Event $event) { } //卸載指定事件 Event::off(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE, $call); //卸載所有事件 Event::off(ActiveRecord::class, ActiveRecord::EVENT_BEFORE_DELETE); ~~~ ### 總結 * 事件的觸發順序是和綁定順序一致的 * 如果有一個事件的函數返回了false或者設置`$event->stop = false;` 則后面的事件就都不再執行