排序数字列表

$array = [1, 0, 5, 9, 3, 7, 6, 8, 4, 2];

usort($array, function (int $a, int $b): int {
    return $a <=> $b;
});

print_r($array);

Array
(
    [0] => 0
    [1] => 1
    [2] => 2
    [3] => 3
    [4] => 4
    [5] => 5
    [6] => 6
    [7] => 7
    [8] => 8
    [9] => 9
)