User will login into mysite and if username and password will be corect then hes IP will be loged in. I know its sounds stupid but listen. I will have some extra rows in my database like
Loged in and IP loged and when user will login hes IP will be added to IP loged row and in Loged in row will be added value True and it works like this!!
When someone will try to login from other computer to some users accout, if user will be loged in and Loged in row value will be True then someone will not be able to login, becase there are allready user loged in!! Another thing if user will close broser and open it again then he will be loged in because script will check for IP with what user is logged in. And when he will click logoff, the script will update information in Loged in field to false. I know it souds stupid but how can I make users login, logoff and remember users without cookies?? is there any onther login way?? please help me!! im too stipid for this!!!