edit

lib/Wechat.php

@@ -133,7 +133,7 @@ class Wechat extends Core
 			# 下单信息
 			$order['time'] = '' . time() . '';
 			$order['order_id'] = $order_id;
-			$order['sign_type'] = $this->config->GetSignType();
+			$order['sign_type'] = 'MD5';
 			unset($order['mch_id']);
 			$this->updateOrderParam($order_id, $order);
 			return $order;