PHP, or PHP Hypertext Preprocessor, implies that one wishes to advance their online status by means of a dynamic system. Such is achieved by a set of n, with real time iteration over a set of tokens in the parse tree, stored in this set of n which runs in log n time.
Database interfacing runs in amortised time, allowing for concurrent database and server access which, in turn, allows us to observe a never previously seen state of computational efficiency. You've never seen Rocky Balboa punch so fast, have you?