今天把系统换成了windows server 2008 r2 同时将PHP环境提升至PHP5.5版本，测试PHPinfo的时候一点问题都没有，但是登陆dede后台却显示500错误，这应该怎么解决呢？百度了一下发现dede不支持PHP5.3、PHP5.4及以上版本了，主要原为是php5.4的版本废除了session_register函数 
        可以采用如$_SESSION[$this->keepUserIDTag] = $this->userID;
        这种方式处理完整代码如下
        首先打开 include/userlogin.class.php这个文件，在287行到308行原内容如下：
         
                        复制代码        代码如下:       
        @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, ‘/’);         
        替换成
         
                        复制代码        代码如下:       
        if(empty($adminstyle)) $adminstyle = ‘dedecms’; 
        //@session_register($this->keepUserIDTag); 
        $_SESSION[$this->keepUserIDTag] = $this->keepUserIDTag; 
        $_SESSION[$this->keepUserIDTag] = $this->userID; 
        //@session_register($this->keepUserTypeTag); 
        $_SESSION[$this->keepUserTypeTag] = $this->keepUserTypeTag; 
        $_SESSION[$this->keepUserTypeTag] = $this->userType; 
        // @session_register($this->keepUserChannelTag); 
        $_SESSION[$this->keepUserChannelTag] = $this->keepUserChannelTag; 
        $_SESSION[$this->keepUserChannelTag] = $this->userChannel; 
        //@session_register($this->keepUserNameTag); 
        $_SESSION[$this->keepUserNameTag] = $this->keepUserNameTag; 
        $_SESSION[$this->keepUserNameTag] = $this->userName; 
        //@session_register($this->keepUserPurviewTag); 
        $_SESSION[$this->keepUserPurviewTag] = $this->keepUserPurviewTag; 
        $_SESSION[$this->keepUserPurviewTag] = $this->userPurview; 
        // @session_register($this->keepAdminStyleTag); 
        $_SESSION[$this->keepAdminStyleTag] = $this->keepAdminStyleTag; 
        $_SESSION[$this->keepAdminStyleTag] = $adminstyle; 
        PutCookie(‘DedeUserID’, $this->userID, 3600 * 24, ‘/’); 
        PutCookie(‘DedeLoginTime’, time(), 3600 * 24, ‘/’);
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