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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<!-- splitted from ./en/functions/dbx.xml, last change in rev 1.3 -->
<refentry id="function.dbx-sort">
<refnamediv>
<refname>dbx_sort</refname>
<refpurpose>
Sort a result from a dbx_query by a custom sort function
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>dbx_sort</methodname>
<methodparam><type>object</type><parameter>result</parameter></methodparam>
<methodparam><type>string</type><parameter>user_compare_function</parameter></methodparam>
</methodsynopsis>
<para>
&return.success;
</para>
<note>
<simpara>
It is always better to use <literal>ORDER BY</literal>
<literal>SQL</literal> clause instead of <function>dbx_sort</function>,
if possible.
</simpara>
</note>
<example>
<title><function>dbx_sort</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
function user_re_order($a, $b)
{
$rv = dbx_compare($a, $b, "parentid", DBX_CMP_DESC);
if (!$rv) {
$rv = dbx_compare($a, $b, "id", DBX_CMP_NUMBER);
}
return $rv;
}
$link = dbx_connect(DBX_ODBC, "", "db", "username", "password")
or die("Could not connect");
$result = dbx_query($link, "SELECT id, parentid, description FROM tbl ORDER BY id");
// data in $result is now ordered by id
dbx_sort($result, "user_re_order");
// data in $result is now ordered by parentid (descending), then by id
dbx_close($link);
?>
]]>
</programlisting>
</example>
<para>
See also <function>dbx_compare</function>.
</para>
</refsect1>
</refentry>
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