uid处理

@@ -26,7 +26,9 @@ class CouponData
         $param = Yohobuy::param();
         $param['method'] = 'app.promotion.queryCouponCenter';
         $param['contentCode'] = $contentCode;
-        $param['uid'] = $uid;
+        if (!empty($uid) && $uid !== '' && $uid !== null) {
+            $param['uid'] = $uid;
+        }
         $param['client_secret'] = Sign::getSign($param);
         return Yohobuy::get(Yohobuy::API_URL, $param);
     }