Is it beneficial for a programmer to learn how to build a compiler?

Question

There is a lot of variety when it comes to the different types of programmers. In general, is beneficial for a programmer to learn how to build a compiler? In what cases would

Answer 1

I'm a web developer; I spend most of my time in PHP and MySQL. I don't think learning to build a compiler would benefit me much.

Different types of programmers will get differing amounts of benefit.

Bit of a non-answer, I know...