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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry role="variable" xml:id="reserved.variables.httpresponseheader" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>$http_response_header</refname>
<refpurpose>HTTP response headers</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<para>
The <varname>$http_response_header</varname> <type>array</type> is similar to the
<function>get_headers</function> function. When using the
<link linkend="wrappers.http">HTTP wrapper</link>,
<varname>$http_response_header</varname> will be populated with the HTTP
response headers. <varname>$http_response_header</varname> will be created
in the <link linkend="language.variables.scope">local scope</link>.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example xml:id="variable.httpresponseheader.basic">
<title><varname>$http_response_header</varname> example</title>
<programlisting role="php">
<![CDATA[
<?php
function get_contents() {
file_get_contents("http://example.com");
var_dump($http_response_header); // variable is populated in the local scope
}
get_contents();
var_dump($http_response_header); // a call to get_contents() does not populate the variable outside the function scope
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
array(9) {
[0]=>
string(15) "HTTP/1.1 200 OK"
[1]=>
string(35) "Date: Sat, 12 Apr 2008 17:30:38 GMT"
[2]=>
string(29) "Server: Apache/2.2.3 (CentOS)"
[3]=>
string(44) "Last-Modified: Tue, 15 Nov 2005 13:24:10 GMT"
[4]=>
string(27) "ETag: "280100-1b6-80bfd280""
[5]=>
string(20) "Accept-Ranges: bytes"
[6]=>
string(19) "Content-Length: 438"
[7]=>
string(17) "Connection: close"
[8]=>
string(38) "Content-Type: text/html; charset=UTF-8"
}
Warning: Undefined variable $http_response_header
NULL
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>http_get_last_response_headers</function></member>
<member><function>http_clear_last_response_headers</function></member>
</simplelist>
</refsect1>
</refentry>
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