PHP array_multisort – 如何保持键值？

参见英文答案 > array_multisort with maintaining numeric index association 2个
如何对多维数组进行深度排序并保留其键？

$array = [
    '2' => [
        'title' => 'Flower','order' => 3
    ],'3' => [
        'title' => 'Rock','order' => 1
    ],'4' => [
        'title' => 'Grass','order' => 2
    ]
];

foreach ($array as $key => $row) {
    $items[$key]  = $row['order'];
}

array_multisort($items,SORT_DESC,$array);

print_r($array);

结果：

Array
(
    [0] => Array
        (
            [title] => Flower
            [order] => 3
        )

    [1] => Array
        (
            [title] => Grass
            [order] => 2
        )

    [2] => Array
        (
            [title] => Rock
            [order] => 1
        )

)

我所追求的是：

Array
(
    [2] => Array
        (
            [title] => Flower
            [order] => 3
        )

    [4] => Array
        (
            [title] => Grass
            [order] => 2
        )

    [3] => Array
        (
            [title] => Rock
            [order] => 1
        )

)

有任何想法吗？

也许这就是你在找什么： Online Example

保留数组键,使用order列排序并再次组合它们.

$keys = array_keys($array);
array_multisort(
    array_column($array,'order'),SORT_NUMERIC,$array,$keys
);
$array = array_combine($keys,$array);
echo '<pre>';
print_r($array);