$username=$_POST['username'];
		$password=$_POST['password'];
		$confirm_password=$_POST['password2'];
		$email=$_POST['email'];

		$prepquery = $db->prepare('SELECT * FROM users WHERE username=:username OR email=:email');
		$prepquery->bindParam(':username', $username);
		$prepquery->bindParam(':email', $email);
		$res = $prepquery->fetch(PDO::FETCH_ASSOC);

		if (!empty($res['username']) && $res['username'] == $username) {
			echo "Username is already in use. <br />";
		} if (!empty($res['email']) && $res['email'] == $email) {
			echo "Email address is already in use. <br />";