Get values from multiple select boxes with same name? Including its value with jquery and php

Question

I have looked for answers on here and have not found anything that directly can help me so I am going to ask here. I have a form with multiple select boxes:

Answer 1

$(function () {
    var $select = $('select');
    $select.on('change', function () {
        var output = 0;
        for (var i = 0, len = $select.length; i < len; i++) {
            output += parseInt($select.eq(i).val());
        }
        //the `output` variable now contains the addition of all the values from the `acabados[]` select elements
    });
});

Here is a demo: http://jsfiddle.net/aPXXA/1/

You can change var $select = $('select'); to var $select = $('[name="acabados[]"]'); to only select the select elements with the acabados[] name attribute.