Required MySQL AND Filemaker Pro information

I have a client who wants to use FileMaker for a few things in his office, and I can give me build a web application. The last time I did it, or thought, or FileMaker I heard it about 10 years ago, and I seem to remember that I do not want to use it as a background for the web application sophisticated, so I think trying to sell them to MySQL. However, their FileMaker database is to talk to MySQL. Any idea how best for them to talk about low FileMaker?
