<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
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  <refentry id="function.apache-request-headers">
   <refnamediv>
    <refname>apache_request_headers</refname>
    <refpurpose>Fetch all HTTP request headers</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>array</type><methodname>apache_request_headers</methodname>
      <void/>
     </methodsynopsis>
    <para>
     <function>apache_request_headers</function> returns an associative
     array of all the HTTP headers in the current request.  This is only
     supported when PHP runs as an <productname>Apache</productname>
     module.
    </para>
    <para>
     <example>
      <title><function>apache_request_headers</function> example</title>
      <programlisting role="php">
<![CDATA[
<?php
$headers = apache_request_headers();

foreach ($headers as $header => $value) {
    echo "$header: $value <br />\n";
}
?>
]]>
      </programlisting>
     </example>
    </para>
    <note>
     <para>
      Prior to PHP 4.3.0, <function>apache_request_headers</function> was
      called <function>getallheaders</function>.  After PHP 4.3.0,
      <function>getallheaders</function> is an alias for
      <function>apache_request_headers</function>.
     </para>
    </note>
    <note>
     <para>
      You can also get at the value of the common CGI variables by
      reading them from the environment, which works whether or not
      you are using PHP as an <productname>Apache</productname> module. Use
      <function>phpinfo</function> to see a list of all of the available
      <link linkend="language.variables.predefined">environment variables</link>.
     </para>
    </note>
    &reference.apache.note-nsapi-module;
   </refsect1>
  </refentry>

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