When Login as a user with (example : ramesh) if same user same time can't login
When User close the browser without logout then its should Auto logged out
i will update query as insert status=0
for logout and login status=1
mysql_query("update usermaster set Status=0 where Username='$user' and password='$pass' and Role='$role'");
I have problem need auto logout status change with 0 and if browser closed without logout then also should be update status with 0