Merging same array values in multidimentional array using PHP

Question

I have this multi-dimentional array:

Array
(
    [0] => Array
        (
            [name] => lorem
            [id] => 1
            [type] => Q1
            [q1] => 39.55
            [q2] => 0

        )

    [1] => Array
        (
            [name] => lorem
            [id] => 1
            [type] => Q2
            [q1] => 0;
            [q2] => 39.55
        )

    [2] => Array
        (
            [name] => lorem
            [id] => 1
            [type] => Q1
            [q1] => 39.55
            [q2] => 39.55
        )

    [3] => Array
        (
            [owner_name] => name
            [id] => 2
            [type] => Q1
            [q1] => 39.55
        [q2] => 0
        )

)

I want to combine all the items in an array with the same id and total all the q1 and q2 in the same owner only in the same type creating a new array structure:

Array
(
    [0] => Array
        (
            [name] => lorem
            [id] => 1
        [Q1_total = > 79.1
            [q2_total] => 79.1
        )

    [1] => Array
        (
            [owner_name] => name
            [id] => 2
            [type] => Q1
            [Q1_total] => 39.55
        [Q2_total] => 0;
        )

)

Answer 1

You will have to use the array_map function and create a custom handler function to process your array as you want.