将值放入数组并使用 array_sum

Question

好吧，我有点卡住了，我知道我在这里遗漏了一件简单的事情，所以希望新鲜的眼睛能有所帮助

我在存储为 2:7:99 的列中有值，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 table 以获得对应于该值的价格。

我遇到的问题是对所有价格值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一个数组中，然后执行 array_sum() 但由于某种原因我无法让它工作

** 请不要提及 SQL 注入 .. 它在没有外部访问权限的本地机器上，只有我自己会使用这个

    <?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

您当前方法的问题是您正在覆盖 $price 变量。您需要像 $price[] = $pricer['incvat'] 一样将 $price 数组中的值压入。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 2

您一直在改写您的最终价格：

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

将其替换为：

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

Answer 3

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

with this in your code

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

将值放入数组并使用 array_sum

Putting values into an array and using array_sum

php

arrays

mysqli

array-sum