Bitwise operators on a Class instance

[Buddski]

Hey All,

Ive been coding PHP for a few years now but have never looked into Bitwise operators before..

I have picked up a few things but there is one part in particularly that sis bugging me..

 

I was reading a script and noticed this:

$Session =& new Session();

 

the Session class construct returns the session_id()

I was wondering if anybody could shed some light on how a bitwise operator such as this works in this context?

 

[greatstar00]

this is how a bitwise operator works

consider a value , 3, in binary code, it is 00000011

and another value, 4, in vunary code, it is 00000100

 

if 3 &  4, then returns 0

00000011

00000100

you do the and  by each bit

for example, the right most bit, 1 (from 3), and 0 ( from 4), it is 0

2nd right most bit, 1 from 3, 0 from 4 is 0

3rd right most bit, 0 from 3, 1 from 4, is 0

and the rest is 0 too

[Buddski]

I understand bitwise operators, I just dont get the $Session &= new Session(); aka $Session = $Session & new Session();

 

It just confuses the hell outta me...

Any insight would be appreciated..

[.josh]

Assignment by reference

 

edited to fix link

[Buddski]

Thanks for that link..

I was getting myself confused with =& and &=

I should learn to read better.

 

That link was exactly what I was looking for it had absolutley nothing to to with bitwise at all

 

Thanks for clearing it all up..