<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.11 $ -->
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<refentry id="function.array-chunk">
 <refnamediv>
  <refname>array_chunk</refname>
  <refpurpose>Split an array into chunks</refpurpose>
 </refnamediv>
 <refsect1>
  <title>Description</title>
  <methodsynopsis>
   <type>array</type><methodname>array_chunk</methodname>
   <methodparam><type>array</type><parameter>input</parameter></methodparam>
   <methodparam><type>int</type><parameter>size</parameter></methodparam>
   <methodparam choice="opt"><type>bool</type><parameter>preserve_keys</parameter></methodparam>
  </methodsynopsis>
  <para>
   <function>array_chunk</function> splits the array into
   several arrays with <parameter>size</parameter> values
   in them. You may also have an array with less values
   at the end. You get the arrays as members of a
   multidimensional array indexed with numbers starting
   from zero.
  </para>
  <para>
   By setting the optional <parameter>preserve_keys</parameter>
   parameter to &true;, you can force PHP to preserve the original
   keys from the input array. If you specify &false; new number
   indices will be used in each resulting array with
   indices starting from zero. The default is &false;.
  </para>
  <example>
   <title><function>array_chunk</function> example</title>
   <programlisting role="php">
<![CDATA[
<?php
$input_array = array('a', 'b', 'c', 'd', 'e');
print_r(array_chunk($input_array, 2));
print_r(array_chunk($input_array, 2, true));
?>
]]>
   </programlisting>
   &example.outputs;
   <screen>
<![CDATA[
Array
(
    [0] => Array
        (
            [0] => a
            [1] => b
        )

    [1] => Array
        (
            [0] => c
            [1] => d
        )

    [2] => Array
        (
            [0] => e
        )

)
Array
(
    [0] => Array
        (
            [0] => a
            [1] => b
        )

    [1] => Array
        (
            [2] => c
            [3] => d
        )

    [2] => Array
        (
            [4] => e
        )

)
]]>
   </screen>
  </example>
 </refsect1>
</refentry>

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