Contact
Success, your message was sent.';
            }
            else
            {
                echo 'Error: failed to send message.
';
            }
            unset( $user_email );
        }
        else
        {
            echo 'Error: given email is not valid email address.
';
        }
    }
    else
    {
        echo 'Error: you didn\'t enter email or message.
';
    }
}
?>