Streamlining array to get total for each key - php

Question

I'm trying to build arrays based off of two queries, one in mysql one on db2. I've built the main arrays, the first dealing with product info and the 2nd dealing with customer info but they have some values in common.
This is working as far as structure but I've been trying to build a final array to contain data from the initial arrays that will build a report.
For now, I'm just going to try and output a report or csv file for each sku_id from the first query, and the total number/ quantity from the 2nd query.
The 2nd query/array contain multiple attributes on a per product/customer basis.
(
[1] => 2
)
Array
(
[1] => 5
)
Array
(
[1] => 14
)
Basically, I pulled three records from the first table for sku_id '1' and matched those three records in db2 for the same sku. Each element corresponds to a customer, so this structure says "customer A had 2 of sku_id 1, customer B had 5 of sku_id 1 and customer C had 14 of sku_id 1'
For the purpose of the report, each line will be for each sku so I want to instead output this as:
array
(
[1] => 21
)
Showing that overall, sku_id 1 had a total of 21. So I still want to keep my initial arrays structured like they are, but I want to modify my final array to just give me line items for the report.
How can I do that?
$skuQuery = "
SELECT
sku_id,
dealer_id,
locations,
s.sku_group_id as groupID,
s.frame as frame,
s.cover1 as cover,
s.color1 as color,
start_date - interval 7 day as start_date
from products p
inner join skus s on p.sku_id = s.id
where curdate() between p.start_date and p.expire_date
group by sku_id, dealer_id
limit 3";
$skuRslt = mysqli_query($conn,$skuQuery);
while($skuRow = mysqli_fetch_assoc($skuRslt)){
$skuResult['sku_id'] = $skuRow;
$dealerQuery = "
SELECT
cstnoc,
sum(orqtyc) as TotalQTY
from table
where cstnoc = {$skuRow['dealer_id']}
AND framec = {$skuRow['frame']}
AND colr1c = {$skuRow['color']}
AND covr1c = {$skuRow['cover']}
AND extd2d >= " . str_replace('-', '', $skuRow['start_date']) . "
group by cstnoc, framec
";
$dealerRslt = odbc_exec($DB2Conn, $dealerQuery);
$dealerResult = [];
foreach($skuResult as $skuRow){
while($dealerRow = odbc_fetch_array($dealerRslt)){
if ( !isset($dealerResult[$dealerRow['CSTNOC']]) ) {
$dealerResult[$dealerRow['CSTNOC']] = 0;
}
$dealerResult[$dealerRow['CSTNOC']] += $dealerRow['TOTALQTY'];
}
}
$skuTots = array_fill_keys(array_unique(array_column($skuResult, 'sku_id')), 0);
foreach ($skuResult as $rec) {
$skuTots[$rec['sku_id']] += $dealerResult[$rec['dealer_id']];
}
print_r($skuTots);
}
UPDATE:
This is the print out for my first two arrays:
Array
(
[0] => Array
(
[sku_id] => 1
[dealer_id] => 1976
[locations] => 1
[groupID] => 1
[frame] => 1051
[cover] => 1150
[color] => 99
[start_date] => 2018-03-
)
[1] => Array
(
[sku_id] => 1
[dealer_id] => 5400
[locations] => 1
[groupID] => 1
[frame] => 1051
[cover] => 1150
[color] => 99
[start_date] => 2017-04-
)
[2] => Array
(
[sku_id] => 1
[dealer_id] => 11316
[locations] => 1
[groupID] => 1
[frame] => 1051
[cover] => 1150
[color] => 99
[start_date] => 2017-02-
)
)
Array
(
[0] => Array
(
[CSTNOC] => 1976
[TOTALQTY] => 2
)
[1] => Array
(
[CSTNOC] => 5400
[TOTALQTY] => 5
)
[2] => Array
(
[CSTNOC] => 11316
[TOTALQTY] => 14
)
)
And here is an example of my end result I'm trying to achieve:
In the below example, sku_id, groupID and location would come directly from the first query. Days is the number of days between start_date (from query 1) and curDate(). Qty is orqtyc from query 2 and Average is a calculation based on locations, days and qty. Each row is based on a different customer, so even though the below example is for one sku, the rows signify a different customer with different locations, qty, etc.
SKU_id | groupID | locations (n) | Days (x) | Qty(q) | Average (x/(q/n))
--------------------------------------------------------------------------------
123 1 3 120 15 24
123 1 2 12 6 4
The Report or CSV would then only show one line item for the above:
SKU | Group | Average Days | Total units sold
123 | 1 | 28 | 21
Basically, for every sku I'm getting those records and then I need to do those calculations by row, and get a total of those values for each sku. The report will only have one line item per sku.