如何将数字题从html表单添加到php数据库中？

<input type="number" name="score" min="0" max="100" required>

$score = $_POST['score'];

$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";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

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

$sql = "INSERT INTO 表名 (数字题字段名) VALUES ('$score')";

if ($conn->query($sql) === TRUE) {
    echo "数字题已成功添加到数据库";
} else {
    echo "添加数字题时出错: " . $conn->error;
}

$conn->close();