Facebook already has several decoupled services written in other languages. The PHP codebase is mostly the front-end code which, beyond some database work, dis

Facebook already has several decoupled services written in other languages. The PHP codebase is mostly the front-end code which, beyond some database work, dispatches heavy lifting to back-end services written in C++, Java, and other languages. As you say, Thrift connects this all. You can look into our C++ core library, Folly, and other C++, C, Python, and Java applications and libraries like Rocksdb, Presto, watchman, Buck, flint, scribe, and so forth on github.