Atmosphere vs GraPHP: What are the differences?

Developers describe Atmosphere as "Realtime Client Server Framework for the JVM, supporting WebSockets and Cross-Browser Fallbacks Support". The Atmosphere Framework contains client and server side components for building Asynchronous Web Applications. The majority of popular frameworks are either supporting Atmosphere or supported natively by the framework. The Atmosphere Framework supports all major Browsers and Servers. On the other hand, GraPHP is detailed as "*A PHP graph DB web framework *". The goal of this project is to build a lightweight web framework with a graph DB abstraction. It should be very easy to create the graph schema with no knowledge of of how the data is stored. Also, the schema should be incredibly flexible so you should never need migrations when adding new models (nodes), connections (edges), or data that lives in nodes.

Atmosphere and GraPHP can be primarily classified as "Frameworks (Full Stack)" tools.

Atmosphere and GraPHP are both open source tools. Atmosphere with 3.34K GitHub stars and 720 forks on GitHub appears to be more popular than GraPHP with 135 GitHub stars and 5 GitHub forks.