how to add values of two arrays with common index in php? -

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• how sum values of array of same key? 13 answers

consider following arrays:

array 1 contents:

index1    value2         5 b         6 c         2 

and array 2 contents:

index2   value2         4 b         2 

i need array 3 should sum of above 2 arrays. like:

index     value           9 b           8 c           2 

this function need:

function array_merge_with_sum_values(array $array1, array $array2){         $finalarray = array_merge($array1, $array2);         $keys = array_keys($finalarray);         foreach($keys $key){             if(isset($array1[$key]) && isset($array2[$key])){                 $finalarray[$key] = $array1[$key] + $array2[$key];             }         }         return $finalarray;     }