Having come from the Leopard install of LAMP (Leopard, Apache, SQLite and PHP) then MAMP, I've now installed XAMMP on advice it is more current and better supported.
Unfortunately I'm having the same problem I did with Leopard default install, PHP test is not returning the PHP test page. (It did return results in my MAMP build)
I don't know where to start looking as I'm new to the Shell Terminal app and it's commands etc. Is this maybe a permissions issue? When I set up on Leopard default install I had to set some permission with chmod command.
I hope I get this going soon, I been trying for days.