Re: Optimize simple file XOR code

* Thus wrote Marcus Johansson: > Wow! That REALLY did make a great difference! > Encoding a file of 2MB took 50 seconds before, now it is done in 1 (ONE) > second! > > My Key is 8192 bytes long, is that the reason for why it so much faster > for me? Most likely because the number crunching is happening in C instead of the php code. > I don't really get how it works, but I guess I will figure it out. It's taking advanatge to the xor'ing of strings: echo 'hallo' ^ 'hello'; php will xor each corresponding byte in the string, so your output will be (in binary) 04000 HTH, Curt -- First, let me assure you that this is not one of those shady pyramid schemes you've been hearing about. No, sir. Our model is the trapezoid!