I have a users table with the following information
users (id, username, password, email, location, about, sex, age, etc.)
I would like to let users add a maximum of five tags to their profile.
The tags will store their interests. And will be used to suggest users to other users based on similar interests.
Should I create a field, in my users table, where they can store all five tags or should I create a separate tags table with a different row for each tag corresponding to the user_id of who it belongs to?
If I choose option 1, how can I store the tags separated by commas in PHP? I would create variable that stores the tag name, and then how do I add this in the correct format?
Storying multiple tags in one field could cause problems.
Personally I would make a new table:
As you can see it uses the userid as the foreign key. It will also be easier to count them etc.