I am brand new to this whole thing, so I really don't know what I'm doing. I am using a tutorial for PHP. It had me write a "hello world program, and said to place it in the root directory of my local host. I placed it in the installed directory of XAMPP, but the program is not recognized by my browser. I configured my browzer for Firefox, which is my default. But when I put in either http//localhost/hello.php, or http//127.0.0.1/hello.php, I come up with a blank page. So I assume I am in the wrong location, or my new installation of XAMPP is not configured properly. Any help is appreciated, as I have no idea about root directories or local hosts. I assumed the root directory is c: and the local host was the directory c:\xampp, which is where the xampp system is installed.
Also, is there any kind of tutorial on the XAMPP system? I have no idea what all the controls are supposed be for. I know I probably need to go back to college and get several Phds just to get the basics, but any help is appreciated.