How to Store Multiple Options selected by User in a Table

Question

So I want my users to be able to restrict who may contact them.

There are several factors they should be able to filter, including Age (e.g. Must be between 18 - 29), in

Answer 1

You can try with this:

criterium
------------
user_id type          value
1       AGE_MIN       18
1       AGE_MAX       29
1       INCOME_MIN    25000
1       INCOME_MAX    60000
1       DRUGS         Marijuana
1       DRUGS         Meth