NYCPHP Meetup

[Dan Cech]

Joseph Crawford wrote:
> Can anyone here point me in a good direction for a tutorial or something 
> about these? I dont understand bits at all.

Bitwise operators are easy, and if you use *nix you use them all the 
time in the form of file permissions.

Basically any integer can be represented in binary form:

1   0001
2   0010
3   0011
4   0100
5   0101
6   0110
7   0111
8   1000

etc.

Bitwise operators simply operate on the binary representation of a 
number, one bit at a time, eg:

1 & 3 = 1

   0001
& 0011
= 0001

3 | 6 = 7

   0011
| 0110
= 0111

Dan