SplObserver::update
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
SplObserver::update — Receive update from subject
说明
This method is called when any SplSubject to which the observer is attached calls SplSubject::notify().
警告
本函数还未编写文档，仅有参数列表。
返回值
没有返回值。
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
SplObserver::update — Receive update from subject
This method is called when any SplSubject to which the observer is attached calls SplSubject::notify().
本函数还未编写文档，仅有参数列表。
没有返回值。