两个多维数组之间的差异

Question

$inc = Array
(
    [0] => Array
        (
            [group_octachat_id] => 0
            [group_name] => General
        )

    [1] => Array
        (
            [group_octachat_id] => 3
            [group_name] => OctaChat
        )

    [2] => Array
        (
            [group_octachat_id] => 9
            [group_name] => S8
        )
)

$log = Array
(
    [0] => Array
        (
            [group_octachat_id] => 3
            [group_name] => OctaChat
        )

    [1] => Array
        (
            [group_octachat_id] => 4
            [group_name] => Translation Daddy
        )

    [2] => Array
        (
            [group_octachat_id] => 5
            [group_name] => Importers Hub
        )
)

我想得到数组的区别