title: How to store user interests in database
body: <p>I'm building a site using Php/MySQL and my question is quite simple (I hope). During the registration process, a user is asked to select their interests from a list of about 15. What would be the best way to store these in the database against each user? Should I store the interests in a separate table and have a join table to match the user_id to the interest_id?</p>