How to get insert id properly? about mysql

[kelunik]

You don't get a ResultSet for insert queries. You can use the following snippet, it resolves to a connection info object.

$info = yield $conn->prepare(
    "INSERT INTO bugs (title, data, submitter) " . 
    "VALUES (:title, :data, :submitter)",
    ["title" => $title, "data" => $data, "submitter" => $uid]
);
$id = $info->insertId;