RE: need a quick help with an order total module

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http://forums.oscommerce.com/viewtopic.php?p=163087#163087
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thanks Ian that gets me started, but I get these errors for these lines:

[code]82	  reset($order->info['tax_groups']); 
83	  while (list($key, $value) = each($order->info['tax_groups'])) { [/code]

[quote][b]Warning:[/b] Variable passed to reset() is not an array or object in [b]C:\Inetpub\wwwroot\macgames\includes\modules\order_total\ot_qty_discount.php[/b] on line [b]82[/b]

[b]Warning:[/b] Variable passed to each() is not an array or object in [b]C:\Inetpub\wwwroot\macgames\includes\modules\order_total\ot_qty_discount.php[/b] on line [b]83[/b][/quote]