PHP を使用して MySQL データベースから HTML テーブルを動的に生成するにはどうすればよいですか?

$table = "user";
$database = "database";
$conn = mysqli_connect("localhost", "username", "password", "database", "3306");

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT * FROM $table";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        echo "<tr><td>" . $row["id"] . "</td><td>" . $row["first_name"] . "</td><td>" . $row["last_name"] . "</td><td>" . $row["birthday"] . "</td></tr>";
    }
    echo "</table>";
} else {
    echo "0 result";
}

$conn->close();

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$conn = mysqli_connect("localhost", "username", "password", "database", "3306");
$mysqli->set_charset('utf8mb4'); // always set the charset

function outputMySQLToHTMLTable(mysqli $mysqli, string $table)
{
    // Verify table existence
    $tableNames = array_column($mysqli->query('SHOW TABLES')->fetch_all(), 0);
    if (!in_array($table, $tableNames, true)) {
        throw new UnexpectedValueException('Unknown table name provided!');
    }

    $res = $mysqli->query('SELECT * FROM ' . $table);
    $data = $res->fetch_all(MYSQLI_ASSOC);

    echo '<table">';
    // Table header
    echo '<thead>';
    echo '<tr>';
    foreach ($res->fetch_fields() as $column) {
        echo '<th' . htmlspecialchars($column->name) . '</th>';
    }
    echo '</tr>';
    echo '</thead>';

    // Table body
    if ($data) {
        foreach ($data as $row) {
            echo '<tr>';
            foreach ($row as $cell) {
                echo '<td' . htmlspecialchars($cell) . '</td>';
            }
            echo '</tr>';
        }
    } else {
        echo '<tr><td colspan="' . $res->field_count . '">No records in the table!</td></tr>';
    }
    echo '</table>';
}

outputMySQLToHTMLTable($mysqli, 'user');

$pdo = new PDO("mysql:host=localhost;dbname=test;charset=utf8mb4", 'username', 'password', [
    PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
    PDO::ATTR_EMULATE_PREPARES => false
]);

function outputMySQLToHTMLTable(pdo $pdo, string $table)
{
    // Verify table existence
    $tableNames = $pdo->query('SHOW TABLES')->fetchAll(PDO::FETCH_COLUMN);
    if (!in_array($table, $tableNames, true)) {
        throw new UnexpectedValueException('Unknown table name provided!');
    }

    $stmt = $pdo->query('SELECT * FROM ' . $table);
    $data = $stmt->fetchAll(PDO::FETCH_ASSOC);
    $columnCount = $stmt->columnCount();

    echo '<table">';
    // Table header
    echo '<thead>';
    echo '<tr>';
    for ($i = 0; $i < $columnCount; $i++) {
        echo '<th' . htmlspecialchars($stmt->getColumnMeta($i)['name']) . '</th>';
    }
    echo '</tr>';
    echo '</thead>';

    // Table body
    if ($data) {
        foreach ($data as $row) {
            echo '<tr>';
            foreach ($row as $cell) {
                echo '<td' . htmlspecialchars($cell) . '</td>';
            }
            echo '</tr>';
        }
    } else {
        echo '<tr><td colspan="' . $columnCount . '">No records in the table!</td></tr>';
    }
    echo '</table>';
}

outputMySQLToHTMLTable($pdo, 'user');

$tableNames = $pdo->prepare('SELECT COUNT(1) FROM information_schema.TABLES WHERE TABLE_SCHEMA = SCHEMA() AND TABLE_NAME=?');
$tableNames->execute([$table]);
if (!$tableNames->fetchColumn()) {
    throw new UnexpectedValueException('Unknown table name provided!');
}