HipHop for PHP isn’t technically a compiler itself. Rather it is a source code transformer. HipHop programmatically transforms your PHP source code into highly optimized C++ and then uses g++ to compile it. HipHop executes the source code in a semantically equivalent manner and sacrifices some rarely used features — such as eval() — in exchange for improved performance. HipHop includes a code transformer,a reimplementation of PHP’s runtime system,and a rewrite of many common PHP Extensions to take advantage of these performance optimizations.

我的问题是,这实际上对哪种类型的Web应用程序有用？

看起来像典型的数据库绑定的Web应用程序可能不会被这大大提供,但是更少见的cpu绑定应用程序会.