Php 绑定新参数，什么'；这个密码怎么了？

我可以确认已成功检索到两个变量

$location

和

$placename

。运行此代码的结果是

成员

表已成功更新，但

放置

表未更新，脚本将我转储到一个空白HTML中。

我发现

绑定参数

不喜欢接受硬编码值。在我尝试获取最后一个插入的ID之前，我试图通过在列中插入一个值1来“测试”我的代码。Fred建议的错误报告真的很有帮助（正如您所看到的，我已经实现的其他建议一样）

修改后的代码：

        // Insert the new user into the database
        // This WORKS, and was copied from an example
        if ($insert_stmt = $mysqli->prepare("INSERT INTO members (username, email, password, salt) VALUES (?, ?, ?, ?)")) {
            $insert_stmt->bind_param('ssss', $username, $email, $password, $random_salt);
            // Execute the prepared query.
            if (! $insert_stmt->execute()) {
                header('Location: ../error.php?err=Registration failure: MEMBER. Please contact the developer.');
            }
            $insert_stmt->close();



            // If user inserted, add place with user as owner
            // This DOESN'T work, and was added by me
            //$ownerid = $mysqli->lastInsertId();
            $placename = $_POST['placename'];
            $placename = mysqli_real_escape_string($mysqli, $placename);
            $location = $_POST['autocomplete'];
            $location = mysqli_real_escape_string($mysqli, $location);
            if ($place_stmt = $mysqli->prepare("INSERT INTO places (member_owner, location, name) VALUES (?, ?, ?)")) {
                $place_stmt->bind_param('iss', 1, $location, $placename);
                if (! $place_stmt->execute()) {
                    header('Location: ../error.php?err=Registration failure: PLACE. Please contact the developer.');
                }
            }
            $place_stmt->close();
        }

        header('Location: ./register_success.php');

---

谢谢你的帮助

告诉你，你有一个微妙的错误。这两个头调用都将被调用（error.php redirect和register_success.php redirect），因为在错误重定向之后您没有退出/死亡。另外，一个空白HTML页面通常表示一个致命的php错误，请在打开php标记后立即检查日志并将错误报告到文件顶部，例如

我将使用
else{header（'Location:./register_success.php'）；exit；}
在两个
if
条件上，并从现在的位置删除
header（'Location:./register_success.php'）；
。还要检查列类型。如果要绑定参数，则不应使用
mysqli_real_escape_string
。。。
    // Insert the new user into the database 
    if ($insert_stmt = $mysqli->prepare("INSERT INTO members (username, email, password, salt) VALUES (?, ?, ?, ?)")) {
        $insert_stmt->bind_param('ssss', $username, $email, $password, $random_salt);
        // Execute the prepared query.
        if (! $insert_stmt->execute()) {
            header('Location: ./error.php?err=Registration failure: MEMBER. Please contact the developer.');
            exit;
        }
        $insert_stmt->close();

        // If user inserted, add place with user as owner
        $ownerid = $mysqli->insert_id;
        if ($place_stmt = $mysqli->prepare("INSERT INTO places (member_owner, location, name) VALUES (?, ?, ?)")) {
            $place_stmt->bind_param('iss', $ownerid, $location, $placename);
            if (! $place_stmt->execute()) {
                header('Location: ./error.php?err=Registration failure: PLACE. Please contact the developer.');
                exit;
            }
        }
        $place_stmt->close();
        header('Location: ./register_success.php');
    }