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<h1 class="refname">SplObserver::update</h1>
<p class="verinfo">(PHP 5 >= 5.1.0)</p><p class="refpurpose"><span class="refname">SplObserver::update</span> — <span class="dc-title">Receive update from subject</span></p>
</div>
<div class="refsect1 description" id="refsect1-splobserver.update-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">abstract</span> <span class="modifier">public</span> <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>SplObserver::update</strong></span>
( <span class="methodparam"><span class="type"><a href="class.splsubject.html" class="type SplSubject">SplSubject</a></span> <code class="parameter">$subject</code></span>
)</div>
<p class="para rdfs-comment">
This method is called when any <a href="class.splsubject.html" class="classname">SplSubject</a>
to which the observer is attached calls <span class="methodname"><a href="splsubject.notify.html" class="methodname">SplSubject::notify()</a></span>.
</p>
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function is
currently not documented; only its argument list is available.
</p></div>
</div>
<div class="refsect1 parameters" id="refsect1-splobserver.update-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">subject</code></em></span>
<dd>
<p class="para">
The <a href="class.splsubject.html" class="classname">SplSubject</a> notifying the observer of an update.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-splobserver.update-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
No value is returned.
</p>
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