[LastChaos]

What does this mean? Please explain to me.

PHP код:

...
something |= 0b100;
... 


and

PHP код:

...
if(something & 0b100) something |= 0b1;
... 


How does it work?

[Vince]

You can find more information here. Though I have to warn you: if you're not at all familiar with binary then it will take quite a lot of time to understand it all. It is usually well worth your time though. It can provide you with a lot of optimization options. Furthermore, since binary is such a generic thing in IT it might prove useful in your professional life if you decide to pursue a career in IT.