We aggregated data from nine different rankings to produce the ZDNET Index of Programming Language Popularity. Here's which languages came out on top and what to make of this information.

PHP is one of the most popular languages, according to Stack Overflow, Github, and RedMonk, but it came second to last in Stack Overflow's ranking of the 40 highest-paying programming languages.

Which programming language will earn you the most money? Salaries for in-demand programming skills including Java and PHP are rising rapidly.

Facebook, Wikipedia, Yahoo, and Photobucket are all built in PHP. WordPress, the most popular blogging platform in the world, runs on PHP and probably accounts for half of that 35 percent.

A basic understanding of various programming languages can benefit anyone, even if you're not looking to become a master coder.

Hack, Facebook's PHP dialect, is gaining popularity, but don't expect it to rival PHP anytime soon. In this month's Tiobe index of language popularity, Hack cracked the top 50 for the first time ...

The Hack language makes its first appearance in the Tiobe index's top 50, and the D language is poised for a big leap Hack, Facebook’s PHP dialect, is gaining popularity, but don’t expect it ...

Facebook has released a programming language called Hack, which marries the ease of PHP with the rigorous safety controls of older languages such as C++. PHP programmers should easily understand ...