How to sort multidimensional array by time in php?

Question

PHP

How can I rearrange this array by the time field so that each item element is sorted in ascending order? For clarity:

$arr['date']['type']['item']['time'];

$arr['2021.06.25']['type'][0]['20:45:00'];
$arr['2021.06.25']['type'][1]['06:00:00'];
$arr['2021.06.25']['type'][2]['13:20:00'];

You need to make it look like this:

$arr['2021.06.25']['type'][0]['06:00:00'];
$arr['2021.06.25']['type'][1]['13:20:00'];
$arr['2021.06.25']['type'][2]['20:45:00'];

Answer 1

Perhaps so?

sort($arr['2021.06.25']['type']);

print_r($arr);

Here you can execute PHP online
Result:

Array
(
    [2021.06.25] => Array
        (
            [type] => Array
                (
                    [0] => 06:00:00
                    [1] => 13:20:00
                    [2] => 20:45:00
                )

        )

)