Sum values in multidimensional array? - php

Question

I just have no idea how to sum and echo values in multidimensional array. This is my array with info about order.
I need to sum RESULT_VALUE and echo one united DESCR list. I have tried lots of things but nothing, never worked with that kind of arrays levels. This is an array with two different products with applied discounts.
Array
(
[0] => Array
(
[ORDER_ID] => 35
[DISCOUNT_ID] => 18
[ORDER_COUPON_ID] => 0
[COUPON_ID] =>
[RESULT] => Array
(
[BASKET] => Array
(
[617] => Array
(
[RULE_ID] => 248
[APPLY] => Y
[RULE_DESCR_ID] => 248
[ACTION_BLOCK_LIST] => Array
(
[0] => 0
)
[DESCR_DATA] => Array
(
[0] => Array
(
[TYPE] => 2
[VALUE] => 10
[VALUE_TYPE] => P
[VALUE_ACTION] => D
[RESULT_VALUE] => 229.905
[RESULT_UNIT] => RUB
)
)
[DESCR] => Array
(
[0] => discount 10% (229.91 rub.)
)
[DESCR_ID] => 248
[BASKET_ID] => 617
[MODULE] => catalog
[PRODUCT_ID] => 10109
)
[618] => Array
(
[RULE_ID] => 249
[APPLY] => Y
[RULE_DESCR_ID] => 249
[ACTION_BLOCK_LIST] => Array
(
[0] => 0
)
[DESCR_DATA] => Array
(
[0] => Array
(
[TYPE] => 2
[VALUE] => 10
[VALUE_TYPE] => P
[VALUE_ACTION] => D
[RESULT_VALUE] => 70.796
[RESULT_UNIT] => RUB
)
)
[DESCR] => Array
(
[0] => discount 10% (70.80 rub.)
)
[DESCR_ID] => 249
[BASKET_ID] => 618
[MODULE] => catalog
[PRODUCT_ID] => 10054
)
)
)
[ACTION_BLOCK_LIST] => 1
)

Answer 1

You can use array_walk_recursive to get result. Code below sum all values of key $key wherever they are in the array
$key = 'RESULT_VALUE';
$sum = 0;
array_walk_recursive ($array,
function($v, $k, $key) use (&$sum) {
if($k === $key) { $sum += $v;}},
$key);
echo $sum;

Answer 2

Echo array_sum(array_column($array, 'RESULT_VALUE'));
This solution work ?

Answer 3

You can use array_sum and array_column.
Array_column grabs all values from one column in the array, and array_sum... Sums it...
echo array_sum(array_column($arr, "RESULT_VALUE"));