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PHP

Split an array into chunks


array_chunk

(PHP 4 >= 4.2.0, PHP 5)

array_chunkSplit an array into chunks

Description

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

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_array2));
print_r(array_chunk($input_array2true));
?>

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   ) ) 

See Also



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