[campsite-dev] Facebook's HipHop: A source code transformer for PHP
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    Hi,I wanted to put this one on your radar: Facebook has released (under GPL) a new project called HipHop, which essentially transforms PHP code into C++. This article explains the details of that, and how it differs from the Zend Engine.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.http://developers.facebook.com/news.php?blog=1&story58doug
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