如何自动检查mysql数据库中的复选框

I have a problem to solve which im not sure if it can be solved in the way that i have in mind. It's about a form with checkboxes. The purpose of this form is to allow users to add or remove their favorite brands from the database by checking/unchecking the form checkboxes. The challege that i face now is that there may already be brands selected in the past from the user. And i would like the page when it loads to check in the database and automatically check the brands in the form which where found in the database. I checked to see if it was possible with jquery , but i got stuck. Here is my code:I have a problem to solve which im not sure if