<!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>Runtime Configuration</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="var.installation.html">Installation</a></div>
<div class="next" style="text-align: right; float: right;"><a href="var.resources.html">Resource Types</a></div>
<div class="up"><a href="var.setup.html">Installing/Configuring</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="var.configuration" class="section">
<h2 class="title">Runtime Configuration</h2>
<p class="simpara">
The behaviour of these functions is affected by settings in <var class="filename">php.ini</var>.
</p>
<p class="para">
<table class="doctable table">
<caption><strong> Variables Configuration Options</strong></caption>
<thead>
<tr>
<th>Name</th>
<th>Default</th>
<th>Changeable</th>
<th>Changelog</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>unserialize_callback_func</td>
<td>NULL</td>
<td>PHP_INI_ALL</td>
<td>Available since PHP 4.2.0.</td>
</tr>
</tbody>
</table>
For further details and definitions of the
PHP_INI_* modes, see the <a href="configuration.changes.modes.html" class="xref">Where a configuration setting may be set</a>.
</p>
<p class="para">Here's a short explanation of
the configuration directives.</p>
<p class="para">
<dl>
<dt id="unserialize-callback-func">
<span class="term">
<em><code class="parameter">unserialize_callback_func</code></em>
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>
</span>
<dd>
<p class="para">
The callback specified is called when <span class="function"><a href="function.unserialize.html" class="function">unserialize()</a></span>
attempts to use an undefined class. A warning appears if the specified
callback function is not defined, or if the callback function fails to
define the missing class.
</p>
<p class="para">
See also <span class="function"><a href="function.unserialize.html" class="function">unserialize()</a></span> and <a href="language.oop5.autoload.html" class="link">Autoloading Objects</a>.
</p>
</dd>
</dt>
</dl>
</p>
</div><hr /><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="var.installation.html">Installation</a></div>
<div class="next" style="text-align: right; float: right;"><a href="var.resources.html">Resource Types</a></div>
<div class="up"><a href="var.setup.html">Installing/Configuring</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
