<?xml version="1.0" encoding="iso-8859-1"?>
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<refentry id="function.apache-setenv">
 <refnamediv>
  <refname>apache_setenv</refname>
  <refpurpose>Set an Apache subprocess_env variable</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>int</type><methodname>apache_setenv</methodname>
   <methodparam><type>string</type><parameter>variable</parameter></methodparam>
   <methodparam><type>string</type><parameter>value</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>walk_to_top</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>apache_setenv</function> sets the value of the Apache
   environment variable specified by
   <parameter>variable</parameter>.
  </para>
  <note>
   <para>
    When setting an Apache environment variable, the corresponding $_SERVER
    variable is not changed.
   </para>
  </note>
  <example>
   <title>Setting an Apache environment variable using <function>apache_setenv</function></title>
   <programlisting role="php">
<![CDATA[
<?php
apache_setenv("EXAMPLE_VAR", "Example Value");
?>
]]>
   </programlisting>
  </example>
  <para>
   <function>apache_setenv</function> can be paired up with
   <function>apache_getenv</function> across separate pages or for setting
   variables to pass to Server Side Includes (.shtml) that have been
   included in PHP scripts.
  </para>
  <para>
   See also <function>apache_getenv</function>.
  </para>
 </refsect1>
</refentry>

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