I have below $test array
Array
(
[0] => Array
(
[quantity] => 3
[stock_id] => _PHONE
)
[1] => Array
(
[quantity] => 3
[stock_id] => 102
)
[2] => Array
(
[quantity] => 4
[stock_id] => _PHONE
)
[3] => Array
(
[quantity] => 3
[stock_id] => 102
)
[4] => Array
(
[quantity] => 4
[stock_id] => _PHONE
)
[5] => Array
(
[quantity] => 6
[stock_id] => _PHONE
)
[6] => Array
(
[quantity] => 2
[stock_id] => 102
)
)
and to sum same stock_id keys to one, i use below functions:
function sum($array, $key){
isset($array[$key['stock_id']]) ? $array[$key['stock_id']]['quantity'] += $key['quantity'] : $array[$key['stock_id']] = $key;
return $array;
};
//merge same stock_id and sum the quantity same stock id
$sum_same_stock_id = array_reduce($test, "sum");
and the result went well like below:
$sum_same_stock_id:
Array
(
[_PHONE] => Array
(
[quantity] => 17
[stock_id] => _PHONE
)
[102] => Array
(
[quantity] => 8
[stock_id] => 102
)
)
So the question here is, I wanted to pass an dynamic keys values not just fixed values stock_id & quantity in sum function above. Have tried variety ways but still can't figured out the way. And can we put those functions into class as well?
Any advise is appreciated!
