Eh, it doesn't matter that I know PHP. I don't want to use it and have barely touched it in the last few years, despite understanding many of its quirks. I'm still using WordPress at the moment but if I have to write PHP I might just quit using it.

Such a simple question as whether something is passed by reference or by value shouldn't result in "This is a super interesting piece of information! Looks like it's true; but I couldn' find any official documentation supporting this fact. We also need to know which versions of PHP support this lazy copy concept. Anyone has more info?" https://stackoverflow.com/a/9740541/3461