Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
If you're new to PHP and want some good learning resources, this article will help you get started the right way. And this other article will help you avoid some of the pitfalls.
If you're new to PHP and this has some economic value, you might want to consider hiring a professional developer rather than try to learn everything a professional developer already knows. You'll get a better result faster that way.