Php/docs/class.splsubject

• PHP Manual
• 各种类及接口
• The SplSubject interface

(PHP 5 >= 5.1.0, PHP 7)

简介

The SplSubject interface is used alongside SplObserver to implement the Observer Design Pattern.

接口摘要

SplSubject {

/* 方法 */

abstract public attach ( SplObserver $observer ) : void

abstract public detach ( SplObserver $observer ) : void

abstract public notify ( ) : void

}

Table of Contents

• SplSubject::attach — Attach an SplObserver
• SplSubject::detach — Detach an observer
• SplSubject::notify — Notify an observer