HipHop for PHP transforms PHP source code into highly optimized C++. It was developed by Facebook and released as open source in early 2010.
HipHop transforms your PHP source code into highly optimized C++ and then compiles it with g++ to build binary files. You keep coding in simpler PHP, then HipHop executes your source code in a semantically equivalent manner and sacrifices some rarely used features - such as eval() - in exchange for improved performance.
Facebook sees about a 50% reduc...
