php-doc-en/reference/apache/functions/apache-note.xml
Mehdi Achour e18b239894 Integrate Frederik Ekengren and Leon Atkinson user notes on apache_note()
Add examples and see also


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@249453 c90b9560-bf6c-de11-be94-00142212c4b1
2007-12-31 00:32:08 +00:00

147 lines
3.4 KiB
XML

<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<refentry xml:id="function.apache-note" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>apache_note</refname>
<refpurpose>Get and set apache request notes</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>apache_note</methodname>
<methodparam><type>string</type><parameter>note_name</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>note_value</parameter></methodparam>
</methodsynopsis>
<para>
Apache-specific function which gets and sets values in a request's
<literal>notes</literal> table.
</para>
<para>
The main use for <function>apache_note</function> is to pass information
from one module to another within the same request.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>note_name</parameter></term>
<listitem>
<para>
The name of the note.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>note_value</parameter></term>
<listitem>
<para>
The value of the note.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
If called with one argument, it returns the current value of note
<literal>note_name</literal>. If called with two arguments, it
sets the value of note <literal>note_name</literal> to
<literal>note_value</literal> and returns the previous value of
note <literal>note_name</literal>.
If the note cannot be retrieved, &false; is returned.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Passing information between PHP and Perl</title>
<programlisting role="php">
<![CDATA[
<?php
apache_note('name', 'Fredrik Ekengren');
// Call perl script
virtual("/perl/some_script.pl");
$result = apache_note("resultdata");
?>
]]>
</programlisting>
<programlisting role="perl">
<![CDATA[
# Get Apache request object
my $r = Apache->request()->main();
# Get passed data
my $name = $r->notes('name');
# some processing
# Pass result back to PHP
$r->notes('resultdata', $result);
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title>Logging values in access.log</title>
<programlisting role="php">
<![CDATA[
<?php
apache_note('sessionID', session_id());
?>
]]>
</programlisting>
<programlisting role="apache">
<![CDATA[
# "%{sessionID}n" can be used in the LogFormat directive
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>virtual</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->