2021-05-10 21:06:33
php5.4删除了session_unregister函数，导致Dedecms系统安全登录退出时，后台页面会出现空白：大家看一下安全退出时的代码，就知道了：
- function exitUser()
- {
- ClearMyAddon();
- @($this->keepUserIDTag);
- @session_unregister($this->keepUserTypeTag);
- @session_unregister($this->keepUserChannelTag);
- @session_unregister($this->keepUserNameTag);
- @session_unregister($this->keepUserPurviewTag);
- DropCookie('dedeAdmindir');
- DropCookie('DedeUserID');
- DropCookie('DedeLoginTime');
- $_SESSION = array();
- }
