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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 )
}

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