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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.12 $ -->
<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
<refentry id="function.arsort">
<refnamediv>
<refname>arsort</refname>
<refpurpose>
Sort an array in reverse order and maintain index association
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>arsort</methodname>
<methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>sort_flags</parameter></methodparam>
</methodsynopsis>
<para>
This function sorts an array such that array indices maintain
their correlation with the array elements they are associated
with. This is used mainly when sorting associative arrays where
the actual element order is significant.
</para>
<para>
&return.success;
</para>
<example>
<title><function>arsort</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
arsort($fruits);
foreach ($fruits as $key => $val) {
echo "$key = $val\n";
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
a = orange
d = lemon
b = banana
c = apple
]]>
</screen>
</example>
<para>
The fruits have been sorted in reverse alphabetical order, and
the index associated with each element has been maintained.
</para>
<para>
You may modify the behavior of the sort using the optional
parameter <parameter>sort_flags</parameter>, for details
see <function>sort</function>.
</para>
<para>
See also <function>asort</function>, <function>rsort</function>,
<function>ksort</function>, and <function>sort</function>.
</para>
</refsect1>
</refentry>
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