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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.session-module-name" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>session_module_name</refname>
<refpurpose>Get and/or set the current session module</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>string</type><type>false</type></type><methodname>session_module_name</methodname>
<methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>module</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<para>
<function>session_module_name</function> gets the name of the current
session module, which is also known as
<link linkend="ini.session.save-handler">session.save_handler</link>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>module</parameter></term>
<listitem>
<para>
If <parameter>module</parameter> is specified and not &null;, that module will be
used instead.
Passing <literal>"user"</literal> to this parameter is forbidden. Instead
<function>session_set_save_handler</function> has to be called to set a user
defined session handler.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the name of the current session module, &return.falseforfailure;.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.0.0</entry>
<entry>
<parameter>module</parameter> is nullable now.
</entry>
</row>
<row>
<entry>7.2.0</entry>
<entry>
It is now explicitly forbidden to set the module name to
<literal>"user"</literal>. Formerly, this has been silently ignored.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
</refentry>
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