No, you'll probably see no changes in your day to day life as a result of this. There's no "interpreted version as opposed to the hiphop-able version", in terms

No, you'll probably see no changes in your day to day life as a result of this. There's no "interpreted version as opposed to the hiphop-able version", in terms of the code you write. As the article mentions, almost no one is really running straight PHP, they're running it through FastCGI or are at least using an opcode cache like APC. So you could be swapping out APC for HPHP, but this is at a level of abstraction below the one you're working in. Regarding future control of PHP, this does not change anything. Its a compiler for the language, but does not propose any changes to the language itself.