checking username is the one that already logged in with

[mike08]

i have set a user_id for a guestbook and registration and the same for username two in different tables though. -

At the moment someone could enter a new username into the guestbook even though that would not be the one they registered with.

is there a way of making sure the username entered in the guestbook is the one that they logged into the site with?

because at the moment its not very good.

thanks

[webmaster1721]

If I understand your issue correctly, then you may want to look into Session Variables or Cookies.

[dartcol]

Yes. Sessions is what you need. Basics are:

session_start();

on each page that is viewed. Then, on the login page declare the new session variables - you can have up to 20 before they start replacing each other - with

$_SESSION['var'] = $_POST['var'] ; //returned result of query or the info that the user posted in the form

and you have a variable registered that can be called on by other pages that include session_start() simply by using $_SESSION['var'].

Check out http://uk.php.net/quickref.php and go down to the session functions. It'll take you a couple of times to get the hang of them. Also, do a search on this site for help. That's what I did about six months ago and haven't looked back. Good luck.