WeberDev.com -> PHP Manual -> Split an array into chunks

Description

array array_chunk ( array $input , int $size [, bool $preserve_keys ] )

Chunks an array into size large chunks. The last chunk may contain less than size elements.

Parameters

input: The array to work on
size: The size of each chunk
preserve_keys: When set to TRUE keys will be preserved. Default is FALSE which will reindex the chunk numerically

Return Values

Returns a multidimensional numerically indexed array, starting with zero, with each dimension containing size elements.

Errors/Exceptions

If size is less than 1 E_WARNING will be thrown and NULL returned.

Examples

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         )  )