使用php按降序排序三级嵌套数组

Question

How to sort following array in descending order by sorder? The whole array is considered to be one array for descending sorting.I see some other questions like this but none of them helped me.

    Array
(
    [0] => Array
        (
            [0] => Array
                (
                    [id] => 2208
                    [status] => u13333333333333
                    [user_id] => 6
                    [sorder] => 3

                )

            [1] => Array
                (
                    [id] => 2208
                    [status] => user111111111111111
                    [user_id] => 6
                    [sorder] => 1
                )

        )

    [1] => Array
        (
            [0] => Array
                (
                    [id] => 2209
                    [status] => u222222222222222222222
                    [user_id] => 5
                    [sorder] => 2

                )

        )

)

Edit May be this is another form of the array in two dimensional.

Array
(
    [userPosts] => Array
        (
            [0] => Array
                (
                    [0] => Array
                        (
                            [id] => 2208
                            [status] => u13333333333333
                            [user_id] => 2208
                            [sorder] => 3
                        )

                    [1] => Array
                        (
                            [id] => 2208
                            [status] => user111111111111111
                            [user_id] => 2208
                            [sorder] => 1

                        )

                )

            [1] => Array
                (
                    [0] => Array
                        (
                            [id] => 2209
                            [status] => u222222222222222222222
                            [user_id] => 2209
                            [sorder] => 2

                        )

                )

        )

)

Answer 1

$yourArray = array(

                array(
                        array('id' => 2208,
                                'status' => 'u13333333333333',
                                'user_id' => 6,
                                'sorder'=>3
                        ),
                        array('id' => 2208,
                                'status' => 'user111111111111111',
                                'user_id' => 6,
                                'sorder'=>1
                        ),
                ),
                array(
                        array('id' => 2209,
                                'status' => 'u222222222222222222222',
                                'user_id' => 5,
                                'sorder'=>2
                        ),

                ),


);
/*Merger arrays as one */
function loopArrayMerger(array $bigArray) {
    if (!$bigArray) {
        return array();
    }

    return call_user_func_array('array_merge', $bigArray);
}
$flatedArray = loopArrayMerger($yourArray);
/*Call back function for sorting, if you want in ascending order just replace 1:-1 with -1:1*/
function compareElementsInArray($a, $b) {
    if ($a['sorder'] == $b['sorder']) {
        return 0;
    }
    return ($a['sorder'] < $b['sorder']) ? 1 : -1;
}

/*Finally sort your array*/
uasort($flatedArray, 'compareElementsInArray');
echo '<pre>';
print_r($flatedArray);