Is there any way to update XAMPP's PHP version from 5.5.15 to the newest one without reinstalling the whole XAMPP on the macOS High Sierra?
I think it is possible to download needed version of php, put it in the directory with php files. Then rename current version in that folder prefixing it with something like _. Then xamp should see new versions of php. This worked for MAMP so i think should work with xamp too.