[mothered]

http://php.net/docs.php

If you have a brain, you can easily tinker with code. Simply reading line-for-line, and seeing any output is more than enough, especially if you don't want to read documentation.

W3schools is outdated, and while their little sandbox idea (seemingly the most convincing reason to use w3s) is good, it isn't as good as testing on your own server. There are somethings blocked, for security measures, and it's best that users find these and test them on their own so they aren't oblivious to such. It can be an "okay" reference at best, there are much better places to learn, whether you want to agree or not.

Yes, I've come across your link many times over, and do agree that It Is quite comprehensive and covers a lot more than w3schools.

My previous posts pertaining to w3schools are based on those "new" to PHP, who're looking to make a fresh start without prior knowledge, and then extend their learning via their own volition- of which PHP's documentation (and other sources) may be an option.