php - 按键对数组进行数字排序

Question

我想对数组进行数字排序，即188、188-1、188-2、222、222-1、222，-2等。这是数组当前的外观:

[188-1] => Array
    (
        [time] => 1
    )

[188-2] => Array
    (
        [time] => 2
    )

[188-3] => Array
    (
        [time] => 3
    )

[188] => Array
    (
        [notes] => frog stand notes
    )

[489] => Array
    (
        [notes] => notes
    )

[489-1] => Array
    (
        [weight] => 10
        [reps] => 30
    )

[489-2] => Array
    (
        [weight] => 20
        [reps] => 30
    )

[489-3] => Array
    (
        [weight] => 30
        [reps] => 30
    )

[492-1] => Array
    (
        [weight] => 500
        [distance] => 100000
    )

[492] => Array
    (
        [notes] => more notes
    )

我尝试了一种ksort ksort($sorted, SORT_DESC);，但它不能与带连字符的键一起使用，除非我做错了什么？

Answer 1

您可以将 uksort() 与 strnatcmp() 用作比较函数:

uksort($array, 'strnatcmp');