解决DedeCMS登录退出后台空白的办法

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(); }

function session_register(){  return true;}