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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<refentry id="function.get-headers">
<refnamediv>
<refname>get_headers</refname>
<refpurpose>Fetches all the headers sent by the server in response to a HTTP request</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>get_headers</methodname>
<methodparam><type>string</type><parameter>url</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>format</parameter></methodparam>
</methodsynopsis>
<para>
<function>get_headers</function> returns an array with the headers sent
by the server in response to a HTTP request. Returns &false; on failure
and an error of level <constant>E_WARNING</constant> will be issued.
</para>
<para>
If the optional <parameter>format</parameter> parameter is set to 1,
<function>get_headers</function> parses the response and sets the array's
keys.
</para>
<note>
<para>
Since PHP 5.1.3 this function uses the default stream context, which can
be set/changed with the <function>stream_context_get_default</function>
function.
</para>
</note>
<para>
<example>
<title><function>get_headers</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$url = 'http://www.example.com';
print_r(get_headers($url));
print_r(get_headers($url, 1));
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Array
(
[0] => HTTP/1.1 200 OK
[1] => Date: Sat, 29 May 2004 12:28:13 GMT
[2] => Server: Apache/1.3.27 (Unix) (Red-Hat/Linux)
[3] => Last-Modified: Wed, 08 Jan 2003 23:11:55 GMT
[4] => ETag: "3f80f-1b6-3e1cb03b"
[5] => Accept-Ranges: bytes
[6] => Content-Length: 438
[7] => Connection: close
[8] => Content-Type: text/html
)
Array
(
[0] => HTTP/1.1 200 OK
[Date] => Sat, 29 May 2004 12:28:14 GMT
[Server] => Apache/1.3.27 (Unix) (Red-Hat/Linux)
[Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
[ETag] => "3f80f-1b6-3e1cb03b"
[Accept-Ranges] => bytes
[Content-Length] => 438
[Connection] => close
[Content-Type] => text/html
)
]]>
</screen>
</example>
</para>
</refsect1>
</refentry>
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