If you call

decbin(-9);

which is equivilent to ~8(NOT 00001000) then it dosn't work - so if I wanted to do anything like removing a bit from a number like:

$byte3 = $byte1 | $byte2;

$byte1 = $byte3 & ~$byte2;

this works, but if you go

decbin(~$num);

then it throughts a woubly... just thought that maybe this function could be fixed to recognise - as signbit...

IcK

(Thanks about previous prob.. silly me = = == ... been using too much C++ and didn't realise php used == aswell :p)