在控制台上使用 PHP 中的 jQuery 显示对象数组时，AJAX 返回未定义错误

Question

I am trying to read a JSON through jQuery and AJAX and some objects like the SUM(amountbet) object in the Array are returning as "undefined" on console.

The above image shows the SUM(amountbet) object as undefined on the console.

But when I am trying to access the "SUM(amountbet)" object it returns me "undefined" on console but when returning the horsename object the value is displayed perfectly. What am i doing wrong here?

Here is my AJAX, jQuery code where i am trying to display each objects in that Array comming from an SQL Query:

$(document).ready(function(){

var racenumberr = $(this).attr("RaceNumber");

var data = new FormData();

data.append("RaceNumber", racenumberr);

$.ajax({

    url:"ajax/horses.ajax.php", 
    method: "POST", 
    data: data,
    cache: false,
    contentType: false,
    processData: false,
    dataType: "json",             
    success: function(response) {

        console.log("Horse Information Displayed In Array",response);

        var len = response.length;
        for (var i = 0; i < len; i++) {

            var horsename = response[i].horsename;
            var totalbetting = response[i].totalbetting;
            var totalpayout = response[i].payout;

            console.log("Horse Names",horsename);
            console.log("Horse Payouts",totalbetting); // <-- object is displayed undefined on console

        }

    }
})

});

Answer 1

对象 totalbetting 未定义，SUM(amountbet) 创建 json 对象并将值转换为整数