I know a little bit of C++, I know some PHP too. I wouldn't necessarily call myself "proficient" in either though. I just know enough to get by, otherwise I can google the rest or nag others :P
What programming languages do you know well enough at the present moment? Which of them are you the most proficient in?
I am fluent in Java/Spigot/Bukkit. I am a little experienced with C# from making Skype tools and Discord bots but I mainly make plugins.