Binary calculations

I was wondering, I never got that far to calculate in binary...

How would I create a function to "calculate binary"? 🙂

say the function is called binary()

and I wan't to find the binary OF the number 2 and i simple find it by doing this: binary(2); any ideas?

Thanks, Arni

decbin (int number)
is a built in function that do exactly what you need.
more details in:
http://www.php.net/manual/en/function.decbin.php

About the bin operations, I supouse you are talking about boolean operations (AND, OR XOR, NOT). If so, check:

(sorry to sound as a "read-the-manual" type of answer, but in this case it's the best source of help)