Question

我正在尝试更新名为customer的数据库中的一些数据。这是我的代码

<?php

Require("dbconnect.php");

$Customer_id = $_POST['Customer_id'];
 $Customer_title = $_POST['Customer_title'];
 $Customer_forename = $_POST['Customer_forename'];
 $Customer_surname = $_POST['Customer_surname'];
 $Customer_contact = $_POST['Customer_contact'];

    ?>

所有变量都保存了正确的数据，因为我测试了它们。运行此代码时没有收到任何错误，但是它也没有更新数据库？有人可以帮忙吗？提前谢谢！

Answer 1

字符串常量需要单引号（forename和surname）：

$sql = "UPDATE `a6123854_a220559`.`Customer` 
SET Customer_forename = '".$Customer_forename."', Customer_surname = '".$Customer_surname."'
WHERE Customer_id = ".$Customer_id."";

请注意，您的代码可能会受到SQL injection的影响。

Answer 2

有一件小事可能会解决你的问题。它在引文中。

$sql = "UPDATE `a6123854_a220559`.`Customer`
SET Customer_forename='".$Customer_forename."',
Customer_surname='".$Customer_surname."'
WHERE Customer_id='".$Customer_id."'";

SQL UPDATE无法正常工作

2 个答案: