$qoh_stock = array();
load_stock_levels($location);
}
- $stock_qty = $qoh_stock[$stock_id];
- if ($stock_qty == NULL) $stock_qty = 0;
+ if (empty($qoh_stock[$stock_id])) $stock_qty = 0;
+ else $stock_qty = $qoh_stock[$stock_id];
if ($qty <= $stock_qty) return $demand;
$bom = @$bom_list[$stock_id];
if ($bom == NULL) {