I now have a Raspberry Pi 3B+ up and running with WordPress, Apache2, MySQL, 
Python, and PHP installed and apparently working just fine. And this site is proof as it’s running on that itty bitty $40 Raspberry Pi…
This little computer is only 3.4 inches by 2.2 inches; pretty amazing when you think of all the things it can do! And it runs off of a 5 volt power source, same as your cell phone charger…just plug in a micro usb cable and away you go (if you know Linux and can code a little).