PHP array sort using inner val

Question

Array
(
[1] => Array
    (
        [id] => 1
        [sort] => 1
    )

[3] => Array
    (
        [id] => 3
        [sort] => 3
    )

[2] => A         


        

Answer 1

Something like this:

usort($array, function (array $a, array $b) { return $a["sort"] - $b["sort"]; });