Hello friends,

Here I am explaining, if you want to split an array into given size element(length) of arrays then you can use array_chink() predefined function of php. array_chunk function chunks an array into arrays with size elements and may be the last chunk may contain less than size elements.

Parameters

array : 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.

<?php
$inputArray = array('a', 'b', 'c', 'd', 'e');
print_r(array_chunk($inputArray, 2));
print_r(array_chunk($inputArray, 2, true));
?>

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
        )

)