php mysql返回自增id

try {
    $pdo = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (:name, :email)");
    $stmt->bindParam(':name', 'John Doe');
    $stmt->bindParam(':email', 'john@example.com');
    $stmt->execute();

    $lastInsertId = $pdo->lastInsertId();
    echo "New user ID: " . $lastInsertId;
} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}

$mysqli = new mysqli('localhost', 'username', 'password', 'test');

if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: " . $mysqli->connect_error;
    exit();
}

$sql = "INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com')";
if ($mysqli->query($sql) === TRUE) {
    $lastInsertId = $mysqli->insert_id;
    echo "New user ID: " . $lastInsertId;
} else {
    echo "Error: " . $mysqli->error;
}

$mysqli->close();