Need Online Form That Uses a MySQL Database To Display Results

I want to build an online form, mostly with checkboxes.

Based on what is checked, a list of items are generated.

The items are stored in a mysql database. Also stored in the database is the items association with the check marked boxes.

Based on what is checked on the form, I would like the form to first check the database, see what items correspond to what is checked on the form, and display the results.

There may also be duplicate results based on what is checked — i want that filtered out so the item is displayed only once, if this makes sense