For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

The PHP Interpreter

带有详细注释的 Redis 3.0 代码（annotated Redis 3.0 source code）。

带有详细注释的 Redis 2.6 源码

The Lua programming language with CMake based build