<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>The SplSubject interface</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="splobserver.update.html">SplObserver::update</a></div> <div class="next" style="text-align: right; float: right;"><a href="splsubject.attach.html">SplSubject::attach</a></div> <div class="up"><a href="spl.misc.html">Miscellaneous Classes and Interfaces</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="class.splsubject" class="reference"> <h1 class="title">The SplSubject interface</h1> <div class="partintro"><p class="verinfo">(PHP 5 >= 5.1.0)</p> <div class="section" id="splsubject.intro"> <h2 class="title">Introduction</h2> <p class="para"> The <strong class="classname">SplSubject</strong> interface is used alongside <a href="class.splobserver.html" class="classname">SplObserver</a> to implement the Observer Design Pattern. </p> </div> <div class="section" id="splsubject.synopsis"> <h2 class="title">Interface synopsis</h2> <div class="classsynopsis"> <div class="ooclass"></div> <div class="classsynopsisinfo"> <span class="ooclass"> <strong class="classname">SplSubject</strong> </span> {</div> <div class="classsynopsisinfo classsynopsisinfo_comment">/* Methods */</div> <div class="methodsynopsis dc-description"> <span class="modifier">abstract</span> <span class="modifier">public</span> <span class="type">void</span> <span class="methodname"><a href="splsubject.attach.html" class="methodname">attach</a></span> ( <span class="methodparam"><span class="type"><a href="class.splobserver.html" class="type SplObserver">SplObserver</a></span> <code class="parameter">$observer</code></span> )</div> <div class="methodsynopsis dc-description"> <span class="modifier">abstract</span> <span class="modifier">public</span> <span class="type">void</span> <span class="methodname"><a href="splsubject.detach.html" class="methodname">detach</a></span> ( <span class="methodparam"><span class="type"><a href="class.splobserver.html" class="type SplObserver">SplObserver</a></span> <code class="parameter">$observer</code></span> )</div> <div class="methodsynopsis dc-description"> <span class="modifier">abstract</span> <span class="modifier">public</span> <span class="type">void</span> <span class="methodname"><a href="splsubject.notify.html" class="methodname">notify</a></span> ( <span class="methodparam">void</span> )</div> }</div> </div> </div> <h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="splsubject.attach.html">SplSubject::attach</a> — Attach an SplObserver</li><li><a href="splsubject.detach.html">SplSubject::detach</a> — Detach an observer</li><li><a href="splsubject.notify.html">SplSubject::notify</a> — Notify an observer</li></ul> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="splobserver.update.html">SplObserver::update</a></div> <div class="next" style="text-align: right; float: right;"><a href="splsubject.attach.html">SplSubject::attach</a></div> <div class="up"><a href="spl.misc.html">Miscellaneous Classes and Interfaces</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>