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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.9 $ -->
<refentry xml:id="function.get-cfg-var" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>get_cfg_var</refname>
<refpurpose>Gets the value of a PHP configuration option</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>get_cfg_var</methodname>
<methodparam><type>string</type><parameter>option</parameter></methodparam>
</methodsynopsis>
<para>
Gets the value of a PHP configuration <parameter>option</parameter>.
</para>
<para>
This function will not return configuration information set when the PHP
was compiled, or read from an Apache configuration file.
</para>
<para>
To check whether the system is using a <link
linkend="configuration.file">configuration file</link>, try retrieving the
value of the cfg_file_path configuration setting. If this is available, a
configuration file is being used.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>option</parameter></term>
<listitem>
<para>
The configuration option name.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the current value of the PHP configuration variable specified by
<parameter>varname</parameter>, or &false; if an error occurs.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ini_get</function></member>
<member><function>ini_get_all</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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