文章时间：2019年9月15日 12:35:56
解决问题：登录之后是空白页面
出现问题情况：一般存在于老版本的织梦，升级了新版本的织梦，php版本导致的，直接切换php版本可解决此问题

找到文件

目录下面：/include/userlogin.class.php
打开文件并搜索@session_register

替换代码

这里不替换也可以，就是将@session_register这些行代码注释掉

if($this->userID != '' && $this->userType != '')
        {
            global $admincachefile,$adminstyle;
            if(empty($adminstyle)) $adminstyle = 'dedecms';

            /*@session_register($this->keepUserIDTag);*/
            $_SESSION[$this->keepUserIDTag] = $this->userID;

            /*@session_register($this->keepUserTypeTag);*/
            $_SESSION[$this->keepUserTypeTag] = $this->userType;

            /*@session_register($this->keepUserChannelTag);*/
            $_SESSION[$this->keepUserChannelTag] = $this->userChannel;

            /*@session_register($this->keepUserNameTag);*/
            $_SESSION[$this->keepUserNameTag] = $this->userName;

            /*@session_register($this->keepUserPurviewTag);*/
            $_SESSION[$this->keepUserPurviewTag] = $this->userPurview;

            /*@session_register($this->keepAdminStyleTag);*/
            $_SESSION[$this->keepAdminStyleTag] = $adminstyle;

            PutCookie('DedeUserID', $this->userID, 3600 * 24, '/');
            PutCookie('DedeLoginTime', time(), 3600 * 24, '/');

            $this->ReWriteAdminChannel();

            return 1;
        }