So really I don't think "good language" is subjective. PHP is not fast, it's not well-designed, it's not particularly terse, it doesn't have particularly great tooling (Facebook has made that better with their HHVM initiative in all fairness), it isn't consistent and easy to reason about and the worst offender of all, it doesn't offer a dramatically different or original model of thinking about programs.
What is has going for it has nothing to do with the language itself: jobs, ecosystem and easy hosting. I totally agree that a good language is whatever works for you, but in the meantime, "whatever is good enough" is a mindset that doesn't help us strive for something better, which does matter if we're going to collectively spend decades in this line of work.
Wrong, otherwise we would have this discussion in Esperanto.
Sometimes Real Life (TM) experience beats clever design. PHP was first, has iterated, always had a niche and is now better than ever. Not good but good enough to save people a lot of work.
Actually, it is.
In PHPs niche this should be in the advantages section.
Personally, I'd rather everyone just stop the good/bad language debates entirely.