Kk

    public function url($url){
        $this->url = $url;
        return $this->url;
    }
    public function checkData($un, $pw) {

        $this->query = $this->conn->query("SELECT * FROM users WHERE username = '$un' AND password = '$pw'");
        if($this->query->num_rows == 1) {
            $_SESSION['id'] = $un;
            header('location: '. $this->url .'me');
            $ip = $_SERVER['REMOTE_ADDR'];
            $this->conn->query("UPDATE users SET ip_last = '$ip' WHERE username = '$un'");
        } else {
            echo "<div class='message error'>Wrong credintials</div>";
        }
    }

    public function generateTicket(){
        $this->sessionKey = 'ST-'.rand(9,999).'-'.substr(sha1(time()).'-'.rand(9,9999999).'-'.rand(9,9999999).'-'.rand(9,9999999),0,33);
        return $this->sessionKey;
    }

    public function registerUser($username, $password, $email, $ticket){
        $db_errors = array();

        $this->query = $this->conn->query("SELECT * FROM users WHERE username = '$username'");
        if($this->query->num_rows == 1){
            $db_errors[] = '<div class="error message">Username already in use</div>';
        }
        $this->check_email = $this->conn->query("SELECT * FROM users WHERE email = '$email'");
        if($this->check_mail->num_rows == 1 ){
           $db_errors[] = '<div class="error message"> Email already in use </div>';
        }
        foreach($db_errors as $db_e){
            echo '<div class="error message">'. $db_e .'</div>';
        }

        if(count($db_errors) == 0){
            $ip = $_SERVER['REMOTE_ADDR'];
            $this->conn->query("INSERT INTO users(username, password, mail, auth_ticket,look,motto,ip_reg) VALUES('$username', '$password', '$email', '$ticket', 'hr-115-42.hd-190-1.ch-215-62.lg-285-91.sh-290-62', 'Welcome to Habbo!','$ip')");
            $_SESSION['id'] = $username;
            header('location: '. $this->url .'me');
        }
    }


}