Php 未使用订单计算总和值+=

我只是尝试在循环中使用sum 所以我创建了这段代码来运行第一个sql命令，从MYSQL中获取值

$money = 0;
foreach ( $fullticketsdetails as $fullticketdetails ) 
{
    echo $fullticketdetails->TKT_sold;
    echo $fullticketdetails->TKT_price;
    $moneydo = $fullticketdetails->TKT_sold *  $fullticketdetails->TKT_price;
    $money+= $moneydo;
}
echo $money;

现在结果必须是：ex=money1+money2 1590+775=2365

但结果是串接字符串：ex=money1Money21590775，而不计算任何值。

代码中缺少$。我在下面的代码中做了一个注释

    $money = 0;
foreach ( $fullticketsdetails as $fullticketdetails ) 
{
echo $fullticketdetails->TKT_sold;
echo $fullticketdetails->TKT_price;
$moneydo = $fullticketdetails->TKT_sold *  $fullticketdetails->TKT_price;
$money+= $moneydo; //The missing $ is on this line for 'moneydo'
}
echo $money;

---

请提供详细的工作为我

<?php

class aaa{

    function __construct($a,$b){
        $this->TKT_sold = $a;
        $this->TKT_price = $b;
    }
}

$fullticketsdetails = array();
$fullticketsdetails[] = new aaa(1,2);
$fullticketsdetails[] = new aaa(5,6);

$money = 0;
foreach ( $fullticketsdetails as $fullticketdetails ) 
{
    $moneydo = $fullticketdetails->TKT_sold *  $fullticketdetails->TKT_price;
    $money += $moneydo;
}

echo $money;

---

如果没有实际值，就没有办法帮助你我只是添加了实际值你想做一些乘法吗？@GaneshKandu是的，因此，用户账单可能有两个不同的项目，价格不同，所以我需要并结束收集bill@RamyAdel请提供您用于foreachi add$的实际价值，但价值仍为1590775美元，即1货币2

32 = 1*2 + 5*6