php 创建动态表格

<?php
// 连接数据库
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

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

if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 查询数据
$sql = "SELECT id, name, age FROM users";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    echo "<table border='1'>
            <tr>
                <th>ID</th>
                <th>Name</th>
                <th>Age</th>
            </tr>";
    while($row = $result->fetch_assoc()) {
        echo "<tr>
                <td>" . $row["id"]. "</td>
                <td>" . $row["name"]. "</td>
                <td>" . $row["age"]. "</td>
              </tr>";
    }
    echo "</table>";
} else {
    echo "0 结果";
}
$conn->close();
?>