The SplSubject interface

(PHP 5 >= 5.1.0, PHP 7)

Einführung

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

SplSubject {

/* Methoden */

abstract public void attach ( SplObserver $observer )

abstract public void detach ( SplObserver $observer )

abstract public void notify ( void )

}