New tax system - sales side

[fa-stable.git] / taxes / tax_calc.inc

diff --git a/taxes/tax_calc.inc b/taxes/tax_calc.inc
index 84aa9ce6372595ca380371e985178753dea4dace..004fcd33fcb49ae2bc64a497bd21692b5969b760 100644 (file)
--- a/taxes/tax_calc.inc
+++ b/taxes/tax_calc.inc
@@ -91,7 +91,7 @@ function get_base_taxdata($stock_id, $group_id)
 
 /*
        Main tax procedure splitting transaction item value according to item tax rules applicable:
-               $stock_id - stock item code; special case is '' for shipping
+               $stock_id - stock item code; NULL for shipping
                $amount - price/value to be splitted
                $tax_group - entity tax group
                $tax_included - whether value includes all taxes
@@ -230,7 +230,7 @@ function get_tax_for_items($trans_type, $items, $prices, $shipping_cost, $tax_gr
        // if shipping cost is passed, just add to the prices/items tables
        if ($shipping_cost != 0)
        {
-               $items[] = null;
+               $items[] = NULL;
                $prices[] = $shipping_cost;
                if ($vat_factors)
                        $vat_factors[] = 1;