array_chunk

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

array_chunkSplit an array into chunks

Опис

array_chunk(array $array, int $length, bool $preserve_keys = false): array

Chunks an array into arrays with length elements. The last chunk may contain less than length elements.

Параметри

array

The array to work on

length

The size of each chunk

preserve_keys

When set to true keys will be preserved. Default is false which will reindex the chunk numerically

Значення, що повертаються

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

Помилки/виключення

If length is less than 1, a ValueError will be thrown.

Журнал змін

Версія Опис
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.

Приклади

Приклад #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));
?>

Поданий вище приклад виведе:

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
        )

)

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