The rumors have been flying over what’s going on over at Facebook headquarters. The word has been that a PHP team was brought in and made to sign non-disclosure agreements before discussing a PHP project that has been in development for the past two years. Alex Handy, senior editor of the Software Development Times Blog, predicted last Saturday that Facebook “has rewritten the PHP runtime from scratch,” and several sources have confirmed for us tonight that Facebook has indeed been making some changes to the basic PHP runtime environment. ..This should be interesting..