Question

I have a PHP function that extract dat of an invoice from DB.

The invoice may have more then one line (one product).

function getInvoiceLines($id)
{
   $res = mysql_query("select * from invoice_lines where id = $id ");
   while ($row = mysql_fetch_array($res))
   {
      $res_retun['ref']=$row['ref'];
      $res_retun['label']=$row['label'];
      $res_retun['price']=$row['label'];
      $res_retun['qty']=$row['qty'];
   }

return $res_retun ;

}

I found this link Create a Multidimensional Array with PHP and MySQL and I made this code using that concept.

Now, how can I move something like a cursor to the next line and add more lines if there’s more in MySQL result??

If it’s possible, how can I do to show data in HTML with for ??

Answer 1

A little modification should get what you want, below the [] operator is a shorthand notation to add elements to an array, the problem with your code is that you are overwriting the same keys on each iteration

   // fetch only what you need;
   $res = mysql_query("select ref, label, price, qty from invoice_lines where id = $id ");
   while ($row = mysql_fetch_array($res))
   {
      $res_return[] = $row;
   }
   return $res_return;

Note, I fixed some of your typos (you were using $rw instead of $row in the loop of your original code)