织梦cms安装完成后登录后台出现空白解决办法
从事php工作，最近使用 php5.4 后发现织梦网的后台登陆显示空白。查找原因，在php5.4的说明中看到了其取消了对session_register的支持。
解决方法：找include/userlogin.class.php里面的keepuser()函数，将其修改为以下代码即可
function keepUser(){
if($this->userID != '' && $this->userType != ''){
global $admincachefile,$adminstyle;
if(empty($adminstyle)) $adminstyle = 'dedecms';
if (!isset($_SESSION[$this->keepUserIDTag]))
$_SESSION[$this->keepUserIDTag] = $this->userID;
if (!isset($_SESSION[$this->keepUserTypeTag]))
$_SESSION[$this->keepUserTypeTag] = $this->userType;
if (!isset($_SESSION[$this->keepUserChannelTag]))
$_SESSION[$this->keepUserChannelTag] = $this->userChannel;
if (!isset($_SESSION[$this->keepUserNameTag]))
$_SESSION[$this->keepUserNameTag] = $this->userName;
if (!isset($_SESSION[$this->keepUserPurviewTag]))
$_SESSION[$this->keepUserPurviewTag] = $this->userPurview;
if (!isset($_SESSION[$this->keepAdminStyleTag]))
$_SESSION[$this->keepAdminStyleTag] = $adminstyle;
PutCookie('DedeUserID', $this->userID, 3600 * 24, '/');
PutCookie('DedeLoginTime', time(), 3600 * 24, '/');
$this->ReWriteAdminChannel();
return 1;
}else{
return -1;
}
}