php - mutlplying values from one array with values in another array -


i'm working 2 databases. 1 database on microsoft sql 2012 , other on mysql 5.5. microsoft sql server has orders table , mysql has 3 currency exchange rate tables. orders table has orders 6 different countries; however, orders 3 of countries have sales totals in local currencies (non-u.s.). 3 currency exchange rates tables separated country containing daily rates. using php, need current years total sales grouped month , country , have exchange rates applied countries total sales not in u.s. currency. each months exchange rate needs average rate month.

i have 2 arrays below. first array orders have sales summed , grouped month , country. second array currency exchange rate has average exchange rates calculated , grouped month , country.

how multiply total sales each month exchange rate countries not in u.s. currency, kr, jp, , nz?

orders

$query = $db->prepare("select month(us_orderdate) month, a.country, sum(a.sales) total_sales ( select     case          when country = 'kr' dateadd(day, +1, cast(orderdate date))          else cast(orderdate date) end us_orderdate, country, sum(total) sales orders  (orderstatusid in ('7','8','9') , country = 'kr') or (orderstatusid in ('7','8','9') , country = 'jp') or (orderstatusid in ('7','8','9') , country = 'au') or (orderstatusid in ('7','8','9') , country = 'nz') or (orderstatusid in ('7','8','9') , country = 'us') or (orderstatusid in ('7','8','9') , country = 'ca') group cast(orderdate date),country) year(us_orderdate) = year(getdate()) group month(us_orderdate), a.country order month(us_orderdate) asc "); try {     $query->execute();     $results = $query->fetchall(pdo::fetch_assoc); }  catch (pdoexception $e) {     die("{error: {$e->getmessage()}}"); }    array(54) {   [0]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "au"     ["total_sales"]=>     string(7) "9095.70"   }   [1]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "ca"     ["total_sales"]=>     string(9) "113993.00"   }   [2]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "kr"     ["total_sales"]=>     string(7) "9284.75"   }   [3]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "nz"     ["total_sales"]=>     string(6) "883.25"   }   [4]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "us"     ["total_sales"]=>     string(9) "609538.25"   }   [5]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "au"     ["total_sales"]=>     string(7) "7393.65"   }   [6]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "ca"     ["total_sales"]=>     string(9) "100279.43"   }   [7]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "jp"     ["total_sales"]=>     string(9) "916110.00"   }   [8]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "kr"     ["total_sales"]=>     string(7) "5217.55"   }   [9]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "nz"     ["total_sales"]=>     string(7) "1355.85"   }   [10]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "us"     ["total_sales"]=>     string(9) "616422.11"   }   ....

exchange rates

$query_exchange_rate = $db_exchange_rate->prepare("select month(date) month, 'nz' country, round((sum(rate)/count(rate)),5) avg_rate currency_exchange_rates.new_zealand year(date) = year(curdate()) group month(date)     union select month(date) month, 'jp' country, round((sum(rate)/count(rate)),5) avg_rate currency_exchange_rates.japan year(date) = year(curdate()) group month(date)     union select month(date) month, 'kr' country, round((sum(rate)/count(rate)),5) avg_rate currency_exchange_rates.south_korea year(date) = year(curdate()) group month(date) order month asc");  try {     $query_exchange_rate->execute();     $results_exchange_rate = $query_exchange_rate->fetchall(pdo::fetch_assoc); }  catch (pdoexception $e) {     die("{error: {$e->getmessage()}}"); }   array(27) {   [0]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "nz"     ["avg_rate"]=>     string(7) "0.76614"   }   [1]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "jp"     ["avg_rate"]=>     string(7) "0.00845"   }   [2]=>   array(3) {     ["month"]=>     string(1) "1"     ["country"]=>     string(2) "kr"     ["avg_rate"]=>     string(7) "0.00090"   }   [3]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "nz"     ["avg_rate"]=>     string(7) "0.74309"   }   [4]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "jp"     ["avg_rate"]=>     string(7) "0.00842"   }   [5]=>   array(3) {     ["month"]=>     string(1) "2"     ["country"]=>     string(2) "kr"     ["avg_rate"]=>     string(7) "0.00090"   }

just loop through them. simplistic way loop through long one, looping through short 1 each time.

foreach($results &$a) // need reference update   foreach($results_exchange_rate $b)     if($a['month'] == $b['month'] && $a['country']==$b['country'])       $a['total_sales']*= $b['avg_rate'];

that multiply total sales avg rate every time month , country same in both arrays.


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