After recently changing jobs, I was given a major project to redo their website, written in Php, picking up where a contractor had left off. I had warned them that my Php knowledge was all but nonexistent, but I was tasked to it anyhow, successfully deploying in about 100 days.
The experience taught me something--so long as the programming language is founded in English, there is no problem in learning it. Php has similarities to C, so was pretty easy.