I had chosen Python, as I was quite familiar with writing Algorithms in it. Not so much with OOP, Lol. I would use PHP if they actually told me to write OOPS, but I wouldn't bet my life on PHP, even though I find it easy and have worked on it a lot for back-end development. But, glad everything worked out. The Senior Engineer, I interviewed with was very knowledgable and had a good grasp on concepts. He gave me a good insight into the company, and this made me feel surer this was the right move for me.