使用php更新mysql查询

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

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

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

// 更新查询
$sql = "UPDATE your_table SET column1 = 'new_value' WHERE condition";

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

// 关闭连接
$conn->close();
?>