You cannot download and install the original XAMPP for Windows on Android. But KSWEB + Termux together give you 95% of the same functionality.
The screen crawled with white text. It wasn't a "one-click" installer like the XAMPP he used on Windows, but the components were all there. He configured the MariaDB root password and fired up the Apache server. download xampp for android full
This method gives you full control—exactly like sudo apt install xampp on Linux, but on Android. You cannot download and install the original XAMPP
If you switch KSWEB to instead of Lighttpd, yes, fully. download xampp for android full