Versus thisPHP is a serverside script, it mean that the web server process the code functions and display it in a way that the browser will be able to read it (HTML for example). you can't clone a serverside script since your browser see only the output of the process (unless you have access to that server FTP/SSH and actually download the files.
but you can clone the layout, javascripts & static content.
just my two cent..
Cheers
Johnniew
the way to clone a php site its making a project base on that site.
a lot of people do this