From b60b05c100fdf9a73bd58c54dc076f831b00474f Mon Sep 17 00:00:00 2001
From: Chaim <gc@dtapp.net>
Date: Wed, 10 Jun 2020 22:38:56 +0800
Subject: [PATCH] =?UTF-8?q?-=20=E4=BF=AE=E5=A4=8D=E6=95=B0=E6=8D=AE?=
 =?UTF-8?q?=E5=BA=93=E7=BC=93=E5=AD=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/cache/Mysql.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cache/Mysql.php b/src/cache/Mysql.php
index d8d7f70..57fe423 100644
--- a/src/cache/Mysql.php
+++ b/src/cache/Mysql.php
@@ -89,7 +89,7 @@ class Mysql
             ->order('id desc')
             ->whereTime('cache_expire', '>', time())
             ->find();
-        return $cache['cache_value'];
+        return isset($cache['cache_value']) ? $cache['cache_value'] : '';
     }
 
     /**