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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.12 $ -->
<!-- State: deprecated -->
<reference id="ref.dbm">
<title>DBM Functions [deprecated]</title>
<titleabbrev>DBM</titleabbrev>
<partintro>
<section id="dbm.intro">
&reftitle.intro;
<para>
These functions allow you to store records stored in a dbm-style
database. This type of database (supported by the Berkeley DB,
<ulink url="&url.gdbm;">GDBM</ulink>, and some system libraries,
as well as a built-in flatfile library) stores key/value pairs
(as opposed to the full-blown records supported by relational
databases).
</para>
<note>
<para>
However, dbm support is deprecated and you are encouraged to use the
<link linkend="ref.dba">Database (dbm-style) abstraction layer functions</link>
instead.
</para>
</note>
<note>
<para>
This extension has been removed from PHP and is no longer available as
of PHP 5.0.0.
</para>
</note>
</section>
<section id="dbm.required">
&reftitle.required;
<para>
To use this functions you have to compile PHP with support for an
underlying database. See the
<link linkend="dba.requirements">list</link> of supported Databases.
</para>
</section>
&reference.dbm.configure;
<section id="dbm.runtime">
&reftitle.runtime;
&no.config;
</section>
<section id="dbm.resources">
&reftitle.resources;
<para>
The function <function>dbmopen</function> returns an database identifier
which is used by the other dbm-functions.
</para>
</section>
<section id="dbm.constants">
&reftitle.constants;
&no.constants;
</section>
<section id="dbm.examples">
&reftitle.examples;
<para>
<example>
<title>DBM example</title>
<programlisting role="php">
<![CDATA[
<?php
$dbm = dbmopen("lastseen", "w");
if (dbmexists($dbm, $userid)) {
$last_seen = dbmfetch($dbm, $userid);
} else {
dbminsert($dbm, $userid, time());
}
do_stuff();
dbmreplace($dbm, $userid, time());
dbmclose($dbm);
?>
]]>
</programlisting>
</example>
</para>
</section>
</partintro>
&reference.dbm.functions;
</reference>
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sgml-default-dtd-file:"../../../manual.ced"
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