织梦dede在php5.4版本注销后显示空白页的解决方法

修改方法： 把源代码改为注释让其失效，再写上新函数代码。提示：请勿使用记事本修改php代码，避免产生错误！

找到织梦目录下的include 文件夹 userlogin.class.php
源代码位于364行

function exitUser()
    {
        ClearMyAddon();
        @session_unregister($this->keepUserIDTag);
        @session_unregister($this->keepUserTypeTag);
        @session_unregister($this->keepUserChannelTag);
        @session_unregister($this->keepUserNameTag);
        @session_unregister($this->keepUserPurviewTag);
        DropCookie('dedeAdmindir');
        DropCookie('DedeUserID');
        DropCookie('DedeLoginTime');
        $_SESSION = array();
    }

function exitUser()
    {
        ClearMyAddon();
        //@session_unregister($this->keepUserIDTag);
		if (!isset($_SESSION_unset[$this->keepUserIDTag]))
        //@session_unregister($this->keepUserTypeTag);
		if (!isset($_SESSION_unset[$this->keepUserTypeTag]))
        //@session_unregister($this->keepUserChannelTag);
		if (!isset($_SESSION_unset[$this->keepUserChannelTag]))
        //@session_unregister($this->keepUserNameTag);
		if (!isset($_SESSION_unset[$this->keepUserNameTag]))
        //@session_unregister($this->keepUserPurviewTag);
		if (!isset($_SESSION_unset[$this->keepUserPurviewTag]))
        DropCookie('dedeAdmindir');
        DropCookie('DedeUserID');
        DropCookie('DedeLoginTime');
        $_SESSION = array();
    }

登陆时dede/login.php页面空白无法进入后台解决方法:
https://iduyao.cn/topics/85