It may not be a major milestone for many, but it is for me!
Considering I am using a book that references older versions of Apache, PHP, and MySQL, and all the changes that have taken place, I think getting the words "hello world" to appear in my browser by way of a PHP script is pretty good progress especially since that is several chapters down the road. Yeah, I just had to stumble ahead, but it was fun.
There seems to be some issues with getting the PHP CLI to work, though I think I just need to tweak some environment variables. A major change with MySQL is that winmysqladmin.exe is no longer available, and this will require some improvsation on my part, but I will manage.
(It's really late, so please excuse any typos.)