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<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.8 $ -->
<refentry id="function.output-add-rewrite-var">
<refnamediv>
<refname>output_add_rewrite_var</refname>
<refpurpose>
Add URL rewriter values
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>output_add_rewrite_var</methodname>
<methodparam><type>string</type><parameter>name</parameter></methodparam>
<methodparam><type>string</type><parameter>value</parameter></methodparam>
</methodsynopsis>
<para>
This function adds another name/value pair to the URL rewrite mechanism.
The name and value will be added to URLs (as GET parameter) and forms
(as hidden input fields) the same way as the session ID when transparent
URL rewriting is enabled with <link
linkend="ini.session.use-trans-sid">session.use_trans_sid</link>.
</para>
<para>
This functions behavior is controlled by the <link
linkend="ini.url-rewriter.tags">url_rewriter.tags</link> &php.ini;
parameter.
</para>
<note>
<simpara>
Calling this function will implicitly start output buffering if it is
not active already.
</simpara>
</note>
<para>
<example>
<title><function>output_add_rewrite_var</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
output_add_rewrite_var('var', 'value');
// a link
echo '<a href="file.php">link</a>';
// a form
echo '<form action="script.php" method="post">
<input type="text" name="var2" />
</form>';
print_r(ob_list_handlers());
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
<a href="file.php?var=value">link</a>
<form action="script.php" method="post">
<input type="hidden" name="var" value="value" />
<input type="text" name="var2" />
</form>
Array
(
[0] => URL-Rewriter
)
]]>
</screen>
</example>
</para>
<para>
See also
<function>output_reset_rewrite_vars</function>,
<function>ob_flush</function> and
<function>ob_list_handlers</function>.
</para>
</refsect1>
</refentry>
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