...HipHop programmatically transforms your PHP source code into highly optimized C++ and then uses g++ to compile it...
header ("Cache-Control: no-store,max-age=0,must-revalidate");
header ("Pragma: public");
header ("Pragma: public_no_cache");
The PHP development team is proud to announce the immediate release of PHP 5.3.0. This release is a major improvement in the 5.X series, which includes a large number of new features and bug fixes.