php - Sum array value per day in multidimensional array

Question

There are a number of great Q&As on Stackoverflow on how to sum across a multidimensional associative array but I have not found a working example of doing subtotals within

Answer 1

You can try this one:

foreach($myArray as &$value){
    if(is_array($value)){
         $value = array_sum($value);
    }
}