如何在php中设置查询结果？

我制作了一个php页面，其中我得到了过去7天的结果，但当我运行查询时，它给出了过去1个月的结果，我如何设置查询？以下是我的查询：

  SELECT DATE_FORMAT(transactions.transaction_date,'%m-%d-%Y') as transaction_date,
         sum(amount)as Amount 
    FROM transactions 
   WHERE transaction_date BETWEEN current_date()-7 AND current_date() 
GROUP BY DATE_FORMAT(transactions.transaction_date,'%m-%d-%Y')

这是我的密码：

$strQuery="select DATE_FORMAT(transactions.transaction_date,'%m-%d-%Y') as transaction_date,sum(amount)as Amount from transactions where transaction_date BETWEEN current_date()-7 AND current_date() group by  DATE_FORMAT(transactions.transaction_date,'%m-%d-%Y')";
    $result = $GLOBALS ['mysqli']->query ($strQuery) or die ($GLOBALS ['mysqli']->error . __LINE__);
    while($rs = $result->fetch_assoc ())
    {
        $res[]=$rs;
    }

---

你必须这样做

  while($rs = $result->fetch_assoc ())
    {
        $res[]=$rs['transaction_date']; //<----- Pass the column name to the resultset
    }

while（$rs=$result->fetch_assoc（））
{
$res[]=$rs['transaction_date']；//您必须这样做

  while($rs = $result->fetch_assoc ())
    {
        $res[]=$rs['transaction_date']; //<----- Pass the column name to the resultset
    }

while（$rs=$result->fetch_assoc（））
{
$res[]=$rs['transaction_date']；//您需要稍微修改一下
WHERE
子句：

WHERE transaction_date BETWEEN DATE_SUB(CURDATE(), INTERVAL 7 DAY) AND CURDATE()

您需要稍微修改一下
WHERE
子句：

WHERE transaction_date BETWEEN DATE_SUB(CURDATE(), INTERVAL 7 DAY) AND CURDATE()