PHP really is such a forgiving language and easy to understand and get in to. My favorite part is that every time I have a seemingly very niche and specific use-case, there is a function that just does that thing perfectly and is already included in the base library.

You said it and I’ll reaffirm: the documentation and online library of SO questions/answers is absolutely priceless. Most of the older versions are still compatible with the latest version, so upgrading is simple and usually just means there are more features you can use now.