class user {

    oublic $usrname; // Username
    public $usrpassword; // Password

    public function login($usrname, $usrpassword) {
    // check DB

    if (mysqli_connect_errno()) { // if mysql connection fails
        echo "<p>Fejl i tilslutning til database</p> ";
        exit;
    }

    $this->usrname = $usrname;
    $this->usrpassword= md5($usrpassword);
    $result=$mysqli->query("SELECT * FROM sl_users WHERE username='$this->usrname' and password='$this->usrpasswor' "); // Query user/pass in db
    $count=mysql_num_rows($result);

    if($count==1){ // If username and password matches 1 line in the database
        session_register("usrname");
        session_register("online");
        $_SESSION['online'] = 1;
        }
        else {
            echo '<p>Forkert brugernavn eller adgangskode!</p>'; // Incorrect username/password // mismatch in database
        }
    $mysqli->close();
    }
    public function logout() {
    session_destroy(usrname);
    }

}
?>