Initially I started with Python because everyone told me it was the best intro to coding, which it was and I'm glad I did. But I want to be focused on the web, so I think it's important to know PHP (despite some people knocking it, it's still used on 75% of the world's web servers).
The two languages I'm really focusing on now is Ruby and PHP. I want to get good with both. And if you want to do anything on the web, you gotta throw Javascript in there as well.