session_destroy()

LordRogaine

I am building a site that has a user registration page. I am using
session_register() to hold the value of the user name. I have a logout page with session_destroy() to wipe everything clean when a user leaves. Everything works fine. My problem is when a user leaves the site without using the log out page is there a way to use session_destroy? Also if someone tries to use the user registration page without the first person logging out I am finding that the name of the previous user is staying and the new one is not taken. I am trying to use session_destroy() on the same page as the user registration so that there is a clean start. Is it possibl;e to use session_register() and session_destroy on the same page? I'm trying something like this- am I completely wrong?

if(!empty($username))
{
session_destroy();
}

elseif (isset($submit) && empty($username))
{

session_register("username");
}

IWS

Yes you can use session_destroy() on the same page as session_register().

Try this:

if (isset($submit) && !empty($username)) {
session_destroy();
session_register($username);
}

Remember, for added security, turn REGISTER_GLOBALS to OFF in your php.ini file, and start using $REQUEST['username'], $REQUEST['submit'], ...

LordRogaine

thanks. I appreciate the help

LordRogaine

I tried using this example and I can't seem to get it to work. The session_destroy() works, but the session_register() doesn't. I tried changing the session_register() from ($username) to ("username") and I get this error message

Warning: Cannot send session cache limiter - headers already sent

What am I doing wrong? I'm very new to this but trying hard to learn. I need to use session_destroy() and session_register() on the same page. Thanks in advance.

suntra

Well... the error you get is because you sent code before calling session_register() or session_start(). You must call those functions BEFORE outputting anything.