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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.array-reverse" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>array_reverse</refname>
<refpurpose>Return an array with elements in reverse order</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>array_reverse</methodname>
<methodparam><type>array</type><parameter>array</parameter></methodparam>
<methodparam choice="opt"><type>bool</type><parameter>preserve_keys</parameter><initializer>false</initializer></methodparam>
</methodsynopsis>
<para>
Takes an input <parameter>array</parameter> and returns a new array with
the order of the elements reversed.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>array</parameter></term>
<listitem>
<para>
The input array.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>preserve_keys</parameter></term>
<listitem>
<para>
If set to &true; keys are preserved.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the reversed array.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>4.0.3</entry>
<entry>
The <parameter>preserve_keys</parameter> parameter was added.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>array_reverse</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$input = array("php", 4.0, array("green", "red"));
$result = array_reverse($input);
$result_keyed = array_reverse($input, true);
?>
]]>
</programlisting>
<para>
This makes both <varname>$result</varname> and
<varname>$result_keyed</varname> have the same elements, but
note the difference between the keys. The printout of
<varname>$result</varname> and
<varname>$result_keyed</varname> will be:
</para>
<screen role="php">
<![CDATA[
Array
(
[0] => Array
(
[0] => green
[1] => red
)
[1] => 4
[2] => php
)
Array
(
[2] => Array
(
[0] => green
[1] => red
)
[1] => 4
[0] => php
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>array_flip</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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