从模态表单中检索值并更新数据库php

<?php
// 获取模态表单中的值
$name = $_POST['name'];
$email = $_POST['email'];

// 连接到数据库
$servername = "数据库服务器地址";
$username = "数据库用户名";
$password = "数据库密码";
$dbname = "数据库名";

$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接数据库失败: " . $conn->connect_error);
}

// 构建更新查询
$sql = "UPDATE 表名 SET email='$email' WHERE name='$name'";

// 执行更新查询
if ($conn->query($sql) === TRUE) {
    echo "更新成功";
} else {
    echo "更新失败: " . $conn->error;
}

// 关闭数据库连接
$conn->close();
?>