php 分割数组

<?php
$array = range(1, 10); // 创建一个包含1到10的数组
$chunkedArray = array_chunk($array, 3); // 将数组分割成每块3个元素的子数组

print_r($chunkedArray);
?>

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
        )

    [1] => Array
        (
            [0] => 4
            [1] => 5
            [2] => 6
        )

    [2] => Array
        (
            [0] => 7
            [1] => 8
            [2] => 9
        )

    [3] => Array
        (
            [0] => 10
        )
)

<?php
$array = range(1, 10); // 创建一个包含1到10的数组
$slicedArray = array_slice($array, 2, 5); // 从索引2开始，取5个元素

print_r($slicedArray);
?>

Array
(
    [0] => 3
    [1] => 4
    [2] => 5
    [3] => 6
    [4] => 7
)

<?php
$array = range(1, 10); // 创建一个包含1到10的数组
$chunkedArray = array_chunk($array, 4); // 将数组分割成每块4个元素的子数组

foreach ($chunkedArray as &$chunk) {
    $chunk = array_pad($chunk, 4, null); // 填充不足的元素
}

print_r($chunkedArray);
?>

Array
(
    [0] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
            [3] => 4
        )

    [1] => Array
        (
            [0] => 5
            [1] => 6
            [2] => 7
            [3] => 8
        )

    [2] => Array
        (
            [0] => 9
            [1] => 10
            [2] => null
            [3] => null
        )
)