Pick whatever you want. Just don't pick a language that is known to be on it's last legs.
Also I wasn't pointing out what you say, you're reading into it a bit. I haven't used PHP in a long ass time. But it seems like not a bad choice for certain markets, at least as much as Python and Ruby imo
What is this out of the park career path I'd have had choosing ruby? Can you share some more details?
Almost the best advice I can give to a developer is stop being fixated on language, and start being fixated on how to solve business problems, on communicating coherently (and like a human being), and being able to quickly grok complexity. The language you program in is almost the least important part of the offer (as long as you're competent in it)
Where? At Facebook? Or somewhere else?
It's not as 'trendy' as it once was, but it's better than ever and still widely used.
I’ve heard that exact sentiment over and over since the RoR community aggressively started with their anti-php agenda in about 2006.
So if you need a job you would probably have better chances knowing PHP then knowing Rust. But if in your area is raining with Rust jobs then go ahead and learn only Rust.
