function getPositionUseStock($positionId, $sku) { $use_num = 0; return $use_num; $order_status = array(400, 401, 402); $order_str = implode(',', $order_status); $order_info = OmAvailableModel::getOrderList($positionId, $sku, $order_str); if ($order_info) { foreach ($order_info as $order) { $use_num += $order['amount']; } } return $use_num; }