Note: php5.4 has deleted the session_unregister function_PHP Tutorial

I installed the dedecms system a few days ago. When I exited safely in the background, a blank space appeared in the background. I only analyzed other functions before and didn’t pay much attention to security. I looked at the code for safe exit and it is written like this:

Copy code The code is as follows:

function exitUser()
{
ClearMyAddon();
@($ 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 ();
}

It suddenly dawned on me that I had written an article before about the blank login background after the dede installation was completed. Then I remembered that it might be a problem with the php version. My php The version is version 5.4. After checking, it is indeed a problem with the new version. It turns out that the session_unregister function has been deleted in the php5.4 version. Damn, dedecms is too out of step with the times. At least it must support the latest php version. , Alas, it cost me so much time to analyze. In the background, replace this function with unset and it will be a perfect solution.

http://www.bkjia.com/PHPjc/328085.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/328085.htmlTechArticleI installed the dedecms system a few days ago. When I exited safely in the background, a blank space appeared in the background. Previously, I only analyzed other After using the function, I didn’t pay much attention to safety. I looked at the safe exit code...