how to sum element in array base key

Question

i have array like this

[1001] => Array
        (
            [0] => 500
        )

    [1204] => Array
        (
            [0] => 750
        )

    [1202] => Array
        (
            [0] => 0
            [1] => 10000
            [2] => 138456
        )

    [1203] => Array
        (
            [0] => 300
        )



)

i want Sum each element of array in key to new output like this

[1001] => Array
        (
            [0] => 500
        )
[1204] => Array
        (
            [0] => 750
        )
[1202] => Array
        (
            [0] => 148456

        )
[1203] => Array
        (
            [0] => 300
        )





)

Thanks !

We do not provide free coding services here. Please provide your code and we will happy to help you debug it if you are at a loss. — harmonica141, Apr 28 '19 at 12:19
The PHP documentation may help you get started: https://www.php.net/manual/en/function.array-sum.php — Jack, Apr 28 '19 at 15:35

score 1 · Accepted Answer · answered Apr 28 '19 at 09:45

1

You can use array_map to apply array_sum to each of the elements of the array:

$sum_array = array_map(function ($v) { return array_sum($v); }, $array);
print_r($sum_array);

Demo on 3v4l.org

answered Apr 28 '19 at 09:45

Nick

138,499
22
57
95

score 0 · Answer 2 · answered Apr 28 '19 at 18:31

You can use the code below. Good luck!

    $data=[
        1001 => [ 500],1024 => [750],1202 =>[0,10000,138456],1203=>[300]
    ];


    foreach($data as $key => $value){

            if(count($data[$key]) > 1){
                    $data[$key]=array_sum($data[$key]);
            }else{
                $data[$key] =$data[$key];
            }

    }

how to sum element in array base key

2 Answers2