Mod_rewrite for mirrors? how, help!!

[Rayzor]

Hi Everyone,

I've heard that you can use a subtle combination of PHP and Mod_Rewrite to dynamically create mirrors for freesites.

How is this doen? can anyone point me to a good tutorial or give me any pointers.

Do i have to do anything with .HTAccess?

I can write a bit of PHP, but don't know how to begin with this one, so any help will be very gratefully recieved.

Cheers

Rayzor