File: http_header_get.xml

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
 -  
 -  This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
 -  project.
 -  
 -  Copyright (C) 1998-2018 OpenLink Software
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 -  This project is free software; you can redistribute it and/or modify it
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 -  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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 -  with this program; if not, write to the Free Software Foundation, Inc.,
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-->
<refentry id="fn_http_header_get">
  <refmeta>
    <refentrytitle>http_header_get</refentrytitle>
    <refmiscinfo>ws</refmiscinfo>
  </refmeta>
  <refnamediv>
    <refname>http_header_get</refname>
    <refpurpose>returns header of current HTTP request</refpurpose>
  </refnamediv>
  <refsynopsisdiv>
    <funcsynopsis id="fsyn_http_header_get">
      <funcprototype id="fproto_http_header_get">
        <funcdef>varchar <function>http_header_get</function></funcdef>
        <paramdef></paramdef>
      </funcprototype>
    </funcsynopsis>
  </refsynopsisdiv>
  <refsect1 id="desc_http_header_get"><title>Description</title>
    <para>
Returns the response header associated with the current HTTP request.  This will not return the default header lines, only those explicitly set with http_header.
</para>
    <para>
This is useful for incrementally modifying response headers during processing
of a URL.
</para>
  </refsect1>
  <refsect1 id="ret_http_header_get"><title>Return Types</title>
    <para>Varchar of the current headers</para>
  </refsect1>
  <refsect1 id="examples_http_header_get"><title>Examples</title>
  <example id="ex_http_header_get"><title>Retrieving the current header</title>
  <programlisting>
&lt;?vsp
http_header (concat (http_header_get (), 'Location: default.html'));
?&gt;
</programlisting>
  </example>
  </refsect1>
</refentry>