diff --git a/extend/base/Baidu.php b/extend/base/Baidu.php
index 3a85d0347..df9776cc4 100755
--- a/extend/base/Baidu.php
+++ b/extend/base/Baidu.php
@@ -57,7 +57,7 @@ class Baidu
         // 登录授权session
         $login_key = 'baidu_user_login_'.$openid;
         $session_data = cache($login_key);
-        if($session_data === false)
+        if(empty($session_data))
         {
             return ['status'=>-1, 'msg'=>'session key不存在'];
         }
@@ -224,7 +224,7 @@ class Baidu
         // 缓存key
         $key = $this->_appid.'_access_token';
         $result = cache($key);
-        if($result !== false)
+        if(!empty($result))
         {
             if($result['expires_in'] > time())
             {
diff --git a/extend/base/QQ.php b/extend/base/QQ.php
index eca380d53..31445aa08 100644
--- a/extend/base/QQ.php
+++ b/extend/base/QQ.php
@@ -57,7 +57,7 @@ class QQ
         // 登录授权session
         $login_key = 'qq_user_login_'.$openid;
         $session_data = cache($login_key);
-        if($session_data === false)
+        if(empty($session_data))
         {
             return 'session key不存在';
         }
diff --git a/extend/base/Toutiao.php b/extend/base/Toutiao.php
index 444e00b97..39590b0fa 100644
--- a/extend/base/Toutiao.php
+++ b/extend/base/Toutiao.php
@@ -163,7 +163,7 @@ class Toutiao
         // 缓存key
         $key = $this->config['appid'].'_access_token';
         $result = cache($key);
-        if($result !== false)
+        if(!empty($result))
         {
             if($result['expires_in'] > time())
             {
diff --git a/extend/base/Wechat.php b/extend/base/Wechat.php
index 5cf11d9d5..197c61fd4 100755
--- a/extend/base/Wechat.php
+++ b/extend/base/Wechat.php
@@ -57,7 +57,7 @@ class Wechat
         // 登录授权session
         $login_key = 'wechat_user_login_'.$openid;
         $session_data = cache($login_key);
-        if($session_data === false)
+        if(empty($session_data))
         {
             return 'session key不存在';
         }
@@ -191,7 +191,7 @@ class Wechat
         // 缓存key
         $key = $this->_appid.'_access_token';
         $result = cache($key);
-        if($result !== false)
+        if(!empty($result))
         {
             if($result['expires_in'] > time())
             {