SplSubject::attach

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

SplSubject::attachAttach an SplObserver

说明

public SplSubject::attach(SplObserver $observer): void

Attaches an SplObserver so that it can be notified of updates.

警告

本函数还未编写文档,仅有参数列表。

参数

observer

The SplObserver to attach.

返回值

没有返回值。

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