The demand for rich Internet applications (RIAs) such as complete storefronts and interactive surveys is skyrocketing, as is the pressure to create these dynamic apps overnight and at low cost. This in-depth Bible provides the step-by-step instructions you need to quickly create RIAs in Flash using cost-effective, open-source PHP programming tools. You'll learn how PHP works, when you should use it in Flash, and above all, vital security techniques for keeping your interactive sites secure.