I am working on an older project that uses functions not supported by the newer PHP version included in my version of XAMPP.
I want to temporarily change to an older version of PHP, so I'm looking for a way to switch between PHP versions in XAMPP.
Unfortunately, refactoring to use the newer version of PHP is not an option.
I would not dare to 'temporarily' shift my development machine.
I would suggest installing a virtual machine manager like VirtualBox and then install a older version of XAMPP in there.