From 2c6fec6cd2af2be64dd29ecaaadc2f0e8b1ead9d Mon Sep 17 00:00:00 2001
From: songliang <songliang@kingsome.cn>
Date: Mon, 3 Jul 2023 17:37:58 +0800
Subject: [PATCH] ...

---
 webapp/controller/ShopController.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index 371a1ad6..12c501fe 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -420,7 +420,7 @@ class ShopController extends BaseAuthedController
         $arrCosts = explode('|', $costs['param_value']);
 
         $max_count = count($arrCosts);
-        $cost = $count < $max_count ? $arrCosts[$count] : null;
+        $cost = $count < $max_count ? $arrCosts[$count] : -1;
 
         $this->_rspData(
             array(