checkbox - checked or unchecked with jquery and mysql

Question

I am currently doing a system where it has to be possible to check/uncheck a checkbox. Everytime it changes status I need jquery to make and ajax call to a page, that update

Answer 1

Detect if checkbox is checked:

if ( $('#id').is(':checked') ) { }

This can be executed in a function that is triggered by "onchange" event.

function checkCheckboxState() {

    if ( $('#id').is(':checked') ) { 

        // execute AJAX request here

    }
}