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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 312832 $ -->
<refentry xml:id="function.header-remove" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>header_remove</refname>
<refpurpose>Remove previously set headers</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>void</type><methodname>header_remove</methodname>
<methodparam choice="opt"><type>string</type><parameter>name</parameter></methodparam>
</methodsynopsis>
<para>
Removes an HTTP header previously set using <function>header</function>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>name</parameter></term>
<listitem>
<para>
The header name to be removed.
</para>
<note>
<simpara>
This parameter is case-insensitive.
</simpara>
</note>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.void;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Unsetting specific header.</title>
<programlisting role="php">
<![CDATA[
<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove("X-Foo");
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
X-Bar: Baz
]]>
</screen>
</example>
<example>
<title>Unsetting all previously set headers.</title>
<programlisting role="php">
<![CDATA[
<?php
header("X-Foo: Bar");
header("X-Bar: Baz");
header_remove();
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="notes"><!-- {{{ -->
&reftitle.notes;
<caution>
<para>
This function will remove <emphasis>all</emphasis> headers set by PHP,
including cookies, session and the <literal>X-Powered-By</literal> headers.
</para>
</caution>
¬e.network.header.sapi;
</refsect1><!-- }}} -->
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>header</function></member>
<member><function>headers_sent</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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sgml-parent-document:nil
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-->
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