We have just released new versions of XAMPP for all platforms with PHP 7.0.3.
https://www.apachefriends.org/download.html
Due to an issue we did not release the zip and 7z versions of XAMPP in sourceforge.net. They are available again for XAMPP 7.0.3.
https://sourceforge.net/projects/xampp/files/?source=navbar
Enjoy!