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有不少喜欢尝新的朋友会碰服务器安装php5.4版本之后dedecms5.7登录后面一篇白茫茫的啊，像下雪一样哦，下面我们来看dedecms后台登录空白问题问题办法。
linux，php5.4， 织梦dedecms后台登录空白，原因：
include/userlogin.class.php，里面有一个keepuser()函数，是用session_register来注册一个session变量，但是在php5.4中已经移除了这个功能
| 代码如下 |
复制代码 |
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把@session_register($this->keepUserIDTag); 注释掉，然后改为
if (!isset($_SESSION[$this->keepUserIDTag]))
如下：
if (!isset($_SESSION[$this->keepUserIDTag]))
//@session_register($this->keepUserIDTag);
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我的修改前与修改后的代码
解决方法：找开include/userlogin.class.php文件，查找以下内容：
| 代码如下 |
复制代码 |
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@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
global $admincachefile,$adminstyle;
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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http://www.bkjia.com/PHPjc/633170.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/633170.htmlTechArticle有不少喜欢尝新的朋友会碰服务器安装php5.4版本之后dedecms5.7登录后面一篇白茫茫的啊，像下雪一样哦，下面我们来看dedecms后台登录空白问题...