The document provides an overview of a presentation given by Stephan Schmidt on connecting PHP and JavaScript using JSON-RPC. Some key points: - It discusses the classic web application model and how business logic resides solely on the server - With Web 2.0, presentation logic moved to the client but business logic still resides on the server - The remote proxy pattern can be used to expose server-side business logic as JavaScript objects, making remote calls transparent to the client - This is done by serializing calls to JSON and making HTTP requests to a JSON-RPC server implemented in PHP - The server uses reflection to dynamically call the relevant PHP methods and return responses also serialized to JSON