I have been visiting -- and repairing -- PHP 5.X websites for years. They are anything but stable. I did maintain Java mastodons for years and they have been both (a) stable and robust and (b) legacy. But PHP projects I was in long time ago -- far from it. Could be anecdotal evidence.
To not make this annoying for future readers: I am okay with legacy code sitting untouched (although I will argue it is usually more broken than you seem to imply), but I am not okay with advertising a language that definitely didn't help the reputation of the IT branch in the eyes of everybody else. PHP sits on a broken foundation.
I have a right to express my opinion and you have a right to express yours. Let's leave it at that since we aren't going to achieve anything here (except flags for non-constructive posts).