Question

当我向查询添加电子邮件时，数据库值不会更新。但没有电子邮件，一切正常。怪异。

这是我的更新查询：

if ($stmt = $mysqli->prepare("UPDATE signup_and_login_users_table SET fullname = ?, username = ?, email = ?
WHERE id=?"))
{
$stmt->bind_param("ssi", $fullname, $username, $id, $email);
$stmt->execute();
$stmt->close();
}

这是我的插页：

if ($stmt = $mysqli->prepare("INSERT signup_and_login_users_table (fullname, username, email) VALUES (?, ?, ?)"))
{
$stmt->bind_param("ss", $fullname, $username, $email);
$stmt->execute();
$stmt->close();
}

Answer 1

你的参数订单应该是：$stmt->bind_param("sssi", $fullname, $username, $email, $id);

<?php

if ($stmt = $mysqli->prepare("UPDATE signup_and_login_users_table SET fullname = ?, username = ?, email = ? WHERE id = ?"))
{
    $stmt->bind_param("sssi", $fullname, $username, $email, $id);
    $stmt->execute();
    $stmt->close();
}
?>

Answer 2

您要绑定的参数应该是相同的顺序

试试这个

<?php

if ($stmt = $mysqli->prepare("UPDATE signup_and_login_users_table SET fullname = ?, username = ?, email = ? WHERE id = ?"))
{
    $stmt->bind_param("sssi", $fullname, $username, $email, $id);
    $stmt->execute();
    $stmt->close();
}
?>

Answer 3

问题是您的查询只有4个字段名称，但是您绑定了5个参数。你从查询中删除了“ssi”。

if ($stmt = $mysqli->prepare(
"INSERT signup_and_login_users_table (ssi, fullname, username, email) VALUES (?, ?, ?)")) {

假设“ssi”是字段名称

在PHP Query中编辑/更新用户配置文件

3 个答案: