Sort a multidimensional an array with numeric keys but keep the keys same just change the order

Question

So I have 3 dimensional array. I want that array to be reordered based on the keys but the value of the keys should remain as it is. Like for an example if the array keys are 5,2,4,1,3 then it should become 1,2,3,4,5. Below I'm providing the array I have and excepted array and the solutions I have tried.

This is the array I have :-

[5] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E3
                            [deal_text] => 
                            [units] => 5
                            [total_units] => 5
                            [amount] => 2620.8333333333
                            [is_freezed] => 
                            [can_sell] => 1
                        )

                )

        )
[2] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E4
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 516.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )

                )

        )
[4] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => C8
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 526.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )
                )

        )
[1] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => D4
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 557.14285714286
                            [is_freezed] => 1
                            [can_sell] => 
                        )
                )
        )
[3] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E5
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 516.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )

                )

        )

Following are the solutions I have tried :-

$result = ksort($result);
$result = array_values($result);
$result = array_splice($result, 0, 0);
$result = sort($result);
$result = array_splice($result, 0, count($result));

This is the expected array :-

Array
(
    [1] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => D4
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 557.14285714286
                            [is_freezed] => 1
                            [can_sell] => 
                        )
                )
        )

    [2] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E4
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 516.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )

                )

        )

    [3] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E5
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 516.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )

                )

        )

    [4] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => C8
                            [deal_text] => 
                            [units] => 1
                            [total_units] => 0
                            [amount] => 526.66666666667
                            [is_freezed] => 1
                            [can_sell] => 
                        )
                )

        )

    [5] => Array
        (
            [Anfield] => Array
                (
                    [0] => Array
                        (
                            [slot] => E3
                            [deal_text] => 
                            [units] => 5
                            [total_units] => 5
                            [amount] => 2620.8333333333
                            [is_freezed] => 
                            [can_sell] => 1
                        )

                )

        )

)

Nothing is working any help will be appreciated. thanks in advance.

Answer 1

You are using ksort as $result = ksort($result);, ksort return TRUE/FALSE. That means you are assigning that to $results. Read here PHP ksort

Your code should be:-

ksort($results);

instead of

$result = ksort($result);

You can use ksort for the keys sorting, here is an example

$arr = [
  5 => [1,3],
  3 => [2,3],
  2 => [0,7]
];
ksort($arr);
echo '<pre>';
print_r($arr);

Output

Array
(
[2] => Array
    (
        [0] => 0
        [1] => 7
    )

[3] => Array
    (
        [0] => 2
        [1] => 3
    )

[5] => Array
    (
        [0] => 1
        [1] => 3
    )

  )