获取键值数组中的子数组的总和

I have a mulit demensional array like this ...

** note the array has closing brackets which is not shown in this image. so theres no issue in the syntax.

I want to add the values in each key (Openness, Conscientiousness) together so that i have a array like :

      Array{
              [Openness]=> Array(
                    [0] => 16
             )
              [Conscientiousness]=>Array (
                     [0]=> 10
              )
         }

When i tried this code after looking through existing questions :

      $sumArray = array();

    foreach ($finalarr as $k=>$subArray) {
      foreach ($subArray as $id=>$value) {
        //$sumArray[$id]+=$value;
        array_key_exists( $id, $sumArray ) ? $sumArray[$id] += $value :      $sumArray[$id] = $value;
            }
        }

   print_r($sumArray);

I get :

which is not what i want. ANy ideas how to fix the array?

You can do it with array_sum() and one loop:

$sumArray = array();
foreach ($finalarr as $k => $subArray) {
    $sumArray[$k] = array_sum($subArray);
}

If you really need the elements of $sumArray to be arrays rather than just the sums, it becomes:

$sumArray = array();
foreach ($finalarr as $k => $subArray) {
    $sumArray[$k] = array(array_sum($subArray));
}

But I'm not sure why you would want that.

Okay as suggested in the comments i used the array_sum and it worked. I changed the foreach to :

**removed the inner loop which was unnecessary

    foreach ($finalarr as $k=>$subArray) {

        $finalarr[$k]=array_sum($subArray);

}

and it gave me the output :

     Array{
          [Openness]=> 16
          [Conscientiousness]=> 10

     }

Thanks for the comments !!