Thanks, I tried most of those languages at some point in time... its more about the market.
(Haskell, Javascript, Ocaml, Lua, Python, Common Lisp, Clojure, Emacs Lisp, Golang, Erlang, Python, Ruby, Java...)
(Haskell, Javascript, Ocaml, Lua, Python, Common Lisp, Clojure, Emacs Lisp, Golang, Erlang, Python, Ruby, Java...)
But otherwise, IMO, your time would be better used learning something else, or another programming language. For example, learning Common Lisp (or scheme), or Haskell, or Prolog, etc, would let you learn new concepts and make you a better PHP programmer in the end, because learning those languages would make you a better programmer in general.
http://www.dmi.unict.it/~barba/PROG-LANG/PROGRAMMI-TESTI/REA...
PHP is in the second little pink box on the right "Sequential object-oriented programming". There are a lot of other boxes to learn!