PHP is legacy, but we teach it as a first server side programming language and then goto rails, then golang. MySQL is not legacy. See https://news.ycombinator.com/item?id=12166585 it's still the database used all the time and it's very very good. Because there's no ROI on taking VC money and putting into a startup that's going to use that money on IIS servers. I am selling my product here. Do you want you apply? Free this year.