html可以连接mysql数据库吗

<?php
$servername = "localhost";
$username = "root";
$password = "your_password";
$dbname = "your_database";

// 创建数据库连接
$conn = new mysqli($servername, $username, $password, $dbname);

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

// 查询数据库中的数据
$sql = "SELECT * FROM your_table";
$result = $conn->query($sql);

// 输出查询结果
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "字段1: " . $row["field1"]. " - 字段2: " . $row["field2"]. "<br>";
    }
} else {
    echo "没有查询到结果";
}

// 关闭数据库连接
$conn->close();
?>