Php/docs/function.ibase-free-event-handler
来自菜鸟教程
ibase_free_event_handler
(PHP 5, PHP 7 < 7.4.0)
ibase_free_event_handler — Cancels a registered event handler
说明
ibase_free_event_handler
( resource $event
) : bool
This function causes the registered event handler specified by
event to be cancelled. The callback function will
no longer be called for the events it was registered to handle.
返回值
成功时返回 true， 或者在失败时返回 false。
