PHP, Python and Ruby are three of today's most popular, versatile & marketable computer programming languages, powering mega-sites like Facebook, Twitter, YouTube and Google.

Which language should you learn to land your next job? Which code is the best fit for your next project? Determine which of these red-hot programming languages reigns supreme in this comprehensive side-by-side comparison from acclaimed video education portal, Udemy.com.

Aggregate posts from the leading job boards indicate the best programming languages to land a job in 2013.

With IT budgets at a five-year high, progressive organizations are developing new software systems and applications to boost performance, reduce costs and expand their reach across a fast-growing digital marketplace. The resulting increase in programming and development projects has placed computer programmers among this year's most sought-after professionals (IT or otherwise). 

CIO.com, a leading resource for IT executives, along with job board aggregator, Indeed.com, analyzed programming and development job offers across the top job boards to determine this year’s hottest programming languages. We built on this top-notch analysis to identify some of the key factors driving workforce demand for each language.

Here are the most marketable programming languages in 2013: