php排序时间戳数组

$timestamps = [1622565600, 1622562000, 1622569200, 1622563800];

// 使用sort()函数进行升序排序
sort($timestamps);

// 输出排序后的数组
print_r($timestamps);

Array
(
    [0] => 1622562000
    [1] => 1622563800
    [2] => 1622565600
    [3] => 1622569200
)

$timestamps = [1622565600, 1622562000, 1622569200, 1622563800];

// 使用usort()函数进行自定义排序
usort($timestamps, function($a, $b) {
    if ($a == $b) {
        return 0;
    }
    return ($a < $b) ? 1 : -1;
});

// 输出排序后的数组
print_r($timestamps);

Array
(
    [0] => 1622569200
    [1] => 1622565600
    [2] => 1622563800
    [3] => 1622562000
)