Question

好吧，我有点卡住了，我知道这里有一个简单的事情，所以希望新鲜的眼睛会帮助

我在列中存储的值为2：7：99等，每个值由以下分隔：

现在我可以将所有值分开并查询另一个表以获得与该值对应的价格。

我遇到的问题是对所有价格值进行求和见下面的代码我认为最简单的方法是将所有价格值添加到数组中，然后执行array_sum（）但由于某种原因我不能让它工作

**请不要提及SQL注入..它在LOCAL机器上没有外部访问权限，只有我自己才会使用这个

    <?php
include('config.php');
// Function for calculation Rough Invoice Total
function basicTotal() {
    $con = mysqli_connect("localhost","USER","PASS","TABLE");
    $wtbdq = mysqli_query($con,"SELECT * FROM `jobs` WHERE wsjid = '18'");
    $wtbdr = mysqli_fetch_assoc($wtbdq);
    do {
    $wtbd = explode(":",$wtbdr['worktobedone']);
    foreach($wtbd as $item) 
        {
            $priceq = mysqli_query($con,"SELECT * FROM `workshop-items` WHERE wsiid = '$item'");
            $pricer = mysqli_fetch_assoc($priceq);

            $price = array($pricer['incvat']);

            echo $item.' - '. $pricer['incvat'].'<br>';

        }

    } while($wtbdr = mysqli_fetch_assoc($wtbdq));

    $total = array_sum($price);
    echo $total;
}
basicTotal();
?>

提前致谢

Answer 1

just replace  $price = $pricer['incvat']; 

with this in your code

$price[] = $pricer['incvat'];

Answer 2

您当前的方法存在的问题是您正在覆盖$price变量。您需要将$price数组中的值推送到$price[] = $pricer['incvat']。你需要这样做

    <?php
include('config.php');
// Function for calculation Rough Invoice Total
function basicTotal() {
    $con = mysqli_connect("localhost","USER","PASS","TABLE");
    $wtbdq = mysqli_query($con,"SELECT * FROM `jobs` WHERE wsjid = '18'");
    $wtbdr = mysqli_fetch_assoc($wtbdq);
    do {
    $wtbd = explode(":",$wtbdr['worktobedone']);
    foreach($wtbd as $item) 
        {
            $priceq = mysqli_query($con,"SELECT * FROM `workshop-items` WHERE wsiid = '$item'");
            $pricer = mysqli_fetch_assoc($priceq);

            $price[] = $pricer['incvat'];

            echo $item.' - '. $pricer['incvat'].'<br>';

        }

    } while($wtbdr = mysqli_fetch_assoc($wtbdq));

    $total = array_sum($price);
    echo $total;
}
basicTotal();
?>

Answer 3

您一直在覆盖最终价格：

    private async void sendMessages_Click(object sender, EventArgs e)
    {
         await ServiceFacade.SendMessage("Hi to CEO");
         await ServiceFacade.SendMessage("Hi to Manager");
         await ServiceFacade.SendMessage("Hi to Team Leader");
    }

将其替换为：

   public class ServiceFacade
   {

   public  async Task SendMessage(string message)
   {

       //validates and formats message then calls PostAsync to send it on api service

       await PostAsync(string message);
   }

   private static async Task PostAsync(string message)
   {

       HttpWebRequest request = (HttpWebRequest)WebRequest.Create("hostname.com")
       //set up REQUEST ...
       var response = (HttpWebResponse)await request.GetResponseAsync();
   }

   }

将值放入数组并使用array_sum

3 个答案: