If the question was, "which language is not to learn?" than I would know the answer: "PHP".
And why?
If I answer that I would probably offend a lot of people. So, I'll pass on it this time.
Also, last time I checked axioms do not require proof.

You started the troll...
My posts are reflection of my personal experience... which is rather relevant and extensive... if you do not like it feel free to ignore.
There is no bad language only bad programmers. PHP has the best documentation ever, the most servers running it and since version 5 allows object oriented programming... Sure it offers so much freedom that if you do not code clean your program will be a mess...
True, but somehow bad programmers tend to gravitate to PHP. It is like a bad neighbourhood which is best to avoid...
Friends do not let friends to do PHP, you know.
Bad coders don't make the language bad? Although it has no consistency in naming of built-ins, which is annoying, and no threading, which is really annoying, and tells you "Stop trying to use PHP for this you should be using something else", which can be annoying until you learn something else. The discussion in this thread makes me want to learn python, and mess around with C# some more.
Although I know I won't get good at them because I have nothing to code just now that I want to code in them, but I hope I shall eventually...