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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<refentry xml:id="function.headers-list" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>headers_list</refname>
<refpurpose>Returns a list of response headers sent (or ready to send)</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>headers_list</methodname>
<void/>
</methodsynopsis>
<para>
<function>headers_list</function> will return a list of headers to be sent
to the browser / client. To determine whether or not these headers have
been sent yet, use <function>headers_sent</function>.
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a numerically indexed array of headers.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Examples using <function>headers_list</function></title>
<programlisting role="php">
<![CDATA[
<?php
/* setcookie() will add a response header on its own */
setcookie('foo', 'bar');
/* Define a custom response header
This will be ignored by most clients */
header("X-Sample-Test: foo");
/* Specify plain text content in our response */
header('Content-type: text/plain');
/* What headers are going to be sent? */
var_dump(headers_list());
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
array(4) {
[0]=>
string(23) "X-Powered-By: PHP/5.1.3"
[1]=>
string(19) "Set-Cookie: foo=bar"
[2]=>
string(18) "X-Sample-Test: foo"
[3]=>
string(24) "Content-type: text/plain"
}
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>headers_sent</function></member>
<member><function>header</function></member>
<member><function>setcookie</function></member>
<member><function>apache_response_headers</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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