在PHP中使用foreach语句打印MySQL行的方法？

<?php
// 连接到MySQL数据库
$servername = "数据库服务器地址";
$username = "用户名";
$password = "密码";
$dbname = "数据库名";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 执行查询
$sql = "SELECT * FROM 表名";
$result = $conn->query($sql);

// 遍历结果集并打印数据
if ($result->num_rows > 0) {
    foreach ($result as $row) {
        echo "ID: " . $row["id"] . "<br>";
        echo "姓名: " . $row["name"] . "<br>";
        echo "年龄: " . $row["age"] . "<br>";
        // 其他字段...
        echo "<br>";
    }
} else {
    echo "没有结果";
}

// 关闭数据库连接
$conn->close();
?>