Facebook shared their PHP to C++ code translator called HipHop that opens up a possibility to compile your code using gcc. Facebook reports that it can fasten up your code up to 50%. Moreover, it’s free!
However, HipHop has it’s drawbacks (some of the are good features, not drawbacks):
- No Windows support (great!)
- No eval() and create_function() support (that’s also great)
- Lots of modules are unsupported at the moment
- Some other minor drawbacks (e.g. function_exists() might not work the way you expect it to work)
In any case – it is worth a try. Grab HipHop here.