PHP
SPL

SplSubject (interface)

The SplSubject interface

Introduction

(PHP 5 >= 5.1.0, PHP 7)

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

Interface synopsis

SplSubject {

/* Methods */

abstract public void attach ( SplObserver $observer )

abstract public void detach ( SplObserver $observer )

abstract public void notify ( void )

}

Table of Contents

  • SplSubject::attach — Attach an SplObserver

  • SplSubject::detach — Detach an observer

  • SplSubject::notify — Notify an observer

← SplObserver::update

SplSubject::attach →

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https://secure.php.net/manual/en/class.splsubject.php