making a tutorial

I'm making a tutorial and don't really understand how to do this myself :) <p>Which of the following pets do have at home: <br /><input type="checkbox" name="favourite[]" value="dog">dog <br /><input type="checkbox" name="favourite[]" value="cat">cat <br /><input type="checkbox" name="favourite[]" value="snake">snake <br /><input type="checkbox" name="favourite[]" value="other">snake <br /><input type="checkbox" name="favourite[]" value="none">none of these </p> How do I parse favourite[]? I might have 2 or 5, so I need to parse ^0] - nMax. It is a checkbox. I might use favourite[] with mail() or store it in a mysql field. If mysql, would I store it in a varchar(20) or an enum() and how? John