认识达内从这里开始

今天在倒腾织梦系统时，安装好之后发现后台无法登录，直接白屏，服务器是Linux系统，起初以为是权限设置的问题，但之前都是正常的，即便全都设置777权限问题也依旧存在，后来百度了下，最终发现了解决方案：

原来DEDECMS不支持PHP5.4以上版本，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;要修改文件：

首先打开 include/userlogin.class.php这个文件，在287行到308行原内容如下：

@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

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, ‘/’);