create file after form completion

Dear all, I am looking for information on how to have a file created after a user has hit a submit on a registration form. I want to use the variables typed in by the user to automatically create a web page with those values. In the registration form I have $name = $HTTP_POST_VARS['name']; $surname = $HTTP_POST_VARS['surname']; $post = $HTTP_POST_VARS['post']; and I would like to create an html document using those (and other) values: <html> <head> <title>This is amazing Mr. $name</title> </head> <body> <p>My surname is $surname and my address $post</p> </body> </html> after the form has been completed. I am a newbie to php and I have been trying to get that information somewhere, but I was not successful. A little help would be appreciated. In particular an example would be wonderful. Thanks.