Sending checked checkbox ids to the database using jquery [duplicate]

This question already has an answer here:

• How to send the values of an array of checkboxes through Ajax using jQuery? 2 answers

I have a checklist that users need to check more than one checkbox and then I should calculate the total price of each chechbox and display it. The problem is I should insert the checked checkbox into the database. So when I am using isset() function I am having an error. So I am thinking to use jquery instead and sending the ids checked to the database but I don't know how to do it.