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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.7 $ -->
<!-- splitted from ./en/functions/array.xml, last change in rev 1.2 -->
<refentry id="function.prev">
<refnamediv>
<refname>prev</refname>
<refpurpose>Rewind the internal array pointer</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>mixed</type><methodname>prev</methodname>
<methodparam><type>array</type><parameter role="reference">array</parameter></methodparam>
</methodsynopsis>
<para>
Returns the array value in the previous place that's pointed to by
the internal array pointer, or &false; if there are no more
elements.
<warning>
<para>
If the array contains empty elements then this function will
return &false; for these elements as well.
To properly traverse an array which may contain empty elements
see the <function>each</function> function.
</para>
</warning>
</para>
<para>
<function>prev</function> behaves just like
<function>next</function>, except it rewinds the internal array
pointer one place instead of advancing it.
</para>
<para>
<example>
<title>Example use of <function>prev</function> and friends</title>
<programlisting role="php">
<![CDATA[
<?php
$transport = array('foot', 'bike', 'car', 'plane');
$mode = current($transport); // $mode = 'foot';
$mode = next($transport); // $mode = 'bike';
$mode = next($transport); // $mode = 'car';
$mode = prev($transport); // $mode = 'bike';
$mode = end($transport); // $mode = 'plane';
?>
]]>
</programlisting>
</example>
</para>
<para>
See also <function>current</function>, <function>end</function>,
<function>next</function>, and <function>reset</function>.
</para>
</refsect1>
</refentry>
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