HTML - Ff Likes It, Ie Hates It, If Ff Saves It Then Ie Likes It!

Hi, atm, i have a Php file that saves whatever they type in the text boxes.

looks like this
PHP Code:
<?php
header("Location: contact2.html");
$handle =

fopen("Contact.txt", "a");
foreach($_GET as

$variable => $value) {
fwrite($handle,

$variable);
fwrite($handle, "=");

fwrite($handle, $value);
fwrite($handle,

"\r\n");
}
fwrite($handle, "\r\n");
fclose($handle);
exit;
?>

How can i make something similiar to that, but instead of saving what all the people type in the same file, i wanted to make seperate files for each person, and the name of the file would be thier name or w.e.


Heres the example of what im talking about.
www.brandondiaz.blackapplehost.com/contact.html