PHP is one of the easiest server-side scripting languages. PHP 7 is the latest version
Now PHP 7.1.16 is going to announce by PHP development team in 2018. Main features of this version is , many bugs have been fixed by one security fix.
I think that installing wordpress is pretty straightforward and should you decide to read on all things that would be flashed at you, then you are looking to accomplish it in a couple of hours.