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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<refentry id="function.session-regenerate-id">
<refnamediv>
<refname>session_regenerate_id</refname>
<refpurpose>
Update the current session id with a newly generated one
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>session_regenerate_id</methodname>
<void />
</methodsynopsis>
<para>
<function>session_regenerate_id</function> will replace the current
session id with a new one, and keep the current session information.
</para>
<para>
&return.success;
</para>
<para>
<example>
<title>A <function>session_regenerate_id</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
session_start();
$old_sessionid = session_id();
session_regenerate_id();
$new_sessionid = session_id();
echo "Old Session: $old_sessionid<br />";
echo "New Session: $new_sessionid<br />";
print_r($_SESSION);
?>
]]>
</programlisting>
</example>
</para>
<note>
<para>
As of PHP 4.3.3, if session cookies are enabled, use of
<function>session_regenerate_id</function> will also submit a new
session cookie with the new session id.
</para>
</note>
<para>
See also <function>session_id</function>,
<function>session_start</function>, and
<function>session_name</function>.
</para>
</refsect1>
</refentry>
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