why session variable is empty to navigate the next page?

Question

I have been working is a website I have been dealing with a problem from a while, and now I know why it is happening, but not how to solve it. Please help!!

Page 1: In

Answer 1

use session in the start in first page, like this. Hopefully this will work

 ";
               echo"alert('Oops.Username Or Password Incorrect!');window.location.href='login.php';";
               echo"";
            }
           else
            {

        $_SESSION['id']=$row['id'];
        $_SESSION['message']=$user;
        $_SESSION['logout']="";
        $id=$_SESSION['id'];
        echo"";
        }
    }

?>