小编Der*_*rik的帖子

我有一个连接到数据库的查询,它按设计工作,但我觉得我有更多的代码需要.有人可以帮我吗？

基本上我试图得到多个列的总和,然后为结果分配一个变量.变量必须每次都是唯一的,所以我可以稍后单独回显它们.

是否可以使用数组来选择不同的列,然后使用相同的数组来生成变量？

我希望这一切都有意义我想要实现的目标.

这个例子只有我查询的12个查询中的3个.

$sql = ("SELECT SUM(Case_closed) AS sum_closed FROM production WHERE Datum = '$actual_time' AND jaar = '$year' ");
    $result = mysqli_query($connect, $sql)  ;
            $Case_closed    = $result->fetch_object()->sum_closed;


$sql = ("SELECT SUM(Case_handled) AS sum_handled FROM production WHERE Datum = '$actual_time'  AND jaar = '$year' ");
    $result = mysqli_query($connect, $sql)  ;
        $Case_handled   = $result->fetch_object()->sum_handled;


$sql = ("SELECT SUM(swap) AS sum_swap FROM production WHERE Datum = '$actual_time'  AND jaar = '$year' ");
    $result = mysqli_query($connect, $sql)  ;
        $swap   = $result->fetch_object()->sum_swap;