Can't access your link.
Some questions to answer:
- Which XAMPP Version do you use?
- Anything changed in the config?
- Your files have the file extension .php (not .php5 or something else)?
- You access them in your Browser with http://localhost/
or full IP/Domain Name (not directly from your Harddisc like C:\xampp\...)?
- Do you use short open tags (<? and <?= instead of <?php and <?php echo) in your file or included files of them?