array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'en', ), 'this' => array ( 0 => 'function.array-chunk.php', 1 => 'array_chunk', ), 'up' => array ( 0 => 'ref.array.php', 1 => 'Array Functions', ), 'prev' => array ( 0 => 'function.array-change-key-case.php', 1 => 'array_change_key_case', ), 'next' => array ( 0 => 'function.array-column.php', 1 => 'array_column', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/array/functions/array-chunk.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
array_chunk — Split an array into chunks
Chunks an array into arrays with length
elements.
The last chunk may contain less than length
elements.
Returns a multidimensional numerically indexed array, starting with zero,
with each dimension containing length
elements.
If length
is less than 1
,
a ValueError will be thrown.
Version | Description |
---|---|
8.0.0 |
If length is less than 1 ,
a ValueError will be thrown now;
previously, an error of level E_WARNING
has been raised instead, and the function returned null .
|
Example #1 array_chunk() example
<?php
$input_array = array('a', 'b', 'c', 'd', 'e');
print_r(array_chunk($input_array, 2));
print_r(array_chunk($input_array, 2, true));
?>
The above example will output:
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 ) )