Question

I have several csv files that contain order information for products. My csv files look something like below:

order_number,sku,qty,price_per,total_price
12345,55555,25,4,100
12346,33333,10,5,50
12347,55555,20,4,80

I’m not having any trouble finding out the total_price for all transactions, but how can I find the totals on each product? I tried creating an array for each, but I can’t figure out how to keep the sku and total_price elements bound together.

Update #2

Since I can’t have an array with matching keys, and since I want to end up here anyway, how can I get an array like this:

Array(
      [55555] => 180
      [33333] => 50
     )

If anyone has any ideas on how I can make this array that would be great. Thanks!

Update #1

Sorry, I spaced adding my code, here it is:

foreach($files as $file){
  $fh = fopen($file, 'rb');
  while($col = fgetcsv($fh)) {
  $csv[] = $col;
  $total = array($col[27])
  }}

Answer 1

This will do what you want, i.e. create an array $totals which sums the totals over skus:

   $totals = array();
   foreach($files as $file) {
        $fh = fopen($file, 'rb');
        while($col = fgetcsv($fh)) {
          $csv[] = $col;
          $total = array($col[27])
          $totals[$col[1]] += $col[27];
        }
    }