A Few PHP/MySQL Questions

[gfxhavenowner]

Background : I have a table in my VB database called topx_admin. There is one field in that table, called $excludedforums.

1. What type of field(varchar, int, etc.) does it need to be to contain multiple forums separated by commas? And what should the values be, i.e. attributes, null, default, etc.)
2. How would I take input from an input field, and save that input as $excludedforums?

Hopefully this will be answered, as none of my other questions have lol.