mirror of
https://github.com/sigmasternchen/php-doc-en
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6230e6c0d5
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@323349 c90b9560-bf6c-de11-be94-00142212c4b1
149 lines
3.5 KiB
XML
149 lines
3.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.apache-note" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>apache_note</refname>
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<refpurpose>Get and set apache request notes</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>string</type><methodname>apache_note</methodname>
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<methodparam><type>string</type><parameter>note_name</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>note_value</parameter><initializer>""</initializer></methodparam>
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</methodsynopsis>
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<para>
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This function is a wrapper for Apache's <literal>table_get</literal> and
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<literal>table_set</literal>. It edits the table of notes that exists
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during a request. The table's purpose is to allow Apache modules to
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communicate.
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</para>
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<para>
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The main use for <function>apache_note</function> is to pass information
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from one module to another within the same request.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>note_name</parameter></term>
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<listitem>
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<para>
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The name of the note.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>note_value</parameter></term>
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<listitem>
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<para>
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The value of the note.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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If called with one argument, it returns the current value of note
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<literal>note_name</literal>. If called with two arguments, it
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sets the value of note <literal>note_name</literal> to
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<literal>note_value</literal> and returns the previous value of
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note <literal>note_name</literal>.
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If the note cannot be retrieved, &false; is returned.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Passing information between PHP and Perl</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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apache_note('name', 'Fredrik Ekengren');
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// Call perl script
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virtual("/perl/some_script.pl");
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$result = apache_note("resultdata");
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?>
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]]>
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</programlisting>
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<programlisting role="perl">
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<![CDATA[
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# Get Apache request object
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my $r = Apache->request()->main();
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# Get passed data
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my $name = $r->notes('name');
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# some processing
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# Pass result back to PHP
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$r->notes('resultdata', $result);
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]]>
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</programlisting>
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</example>
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</para>
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<para>
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<example>
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<title>Logging values in access.log</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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apache_note('sessionID', session_id());
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?>
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]]>
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</programlisting>
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<programlisting role="apache">
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<![CDATA[
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# "%{sessionID}n" can be used in the LogFormat directive
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>virtual</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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