Learn the basics of building complex, data-driven applications with the Facebook PHP SDK and MySQL. Author Ray Villalobos first introduces the fundamentals, such as checking to see if a user is logged into an application, accessing Facebook user data through the Open Graph API, and making complex API calls with the Graph API Explorer. The course then dives into building an application with API paths and Facebook Query Language (FQL) calls. Along the way, you'll discover how to post to a user's wall, upload photos, integrate with webpages, and more.