PHP dev::getLastThreadID示例

if (isset($_GET['from']) && !isset($_POST['from'])) {
    $from = $_GET['from'];
} else {
    if (!isset($_GET['from']) && isset($_POST['from'])) {
        $from = $_POST['from'];
    } else {
        echo 'error';
        header('Location: ./index.php');
    }
}
if ($from == "add") {
    if ($_POST['send']) {
        if (isset($_SESSION['user'])) {
            if ($dev->isConnected($_SESSION['user']['username'], $_SESSION['user']['password'], $_SESSION['user']['session_id'])) {
                if ($dev->getForumAdminLevel($_POST['forum']) <= $dev->getAdminLevel($dev->getId($_SESSION['user']['username']))) {
                    $sql = "INSERT INTO `web_threads`(`id`, `forum_id`, `title`, `uuid_author`, `stucked`, `valid`) VALUES ('" . ($dev->getLastThreadID() + 1) . "','" . $_POST['forum'] . "', '" . utf8_decode(addslashes($_POST['title'])) . "', '" . $dev->getId($_SESSION['user']['username']) . "','0','1');";
                    $sql2 = "INSERT INTO `web_messages`(`uuid_author`, `content`, `thread_id`) VALUES ('" . $dev->getId($_SESSION['user']['username']) . "', '" . addslashes(utf8_decode($_POST['bbcode_field'])) . "','" . ($dev->getLastThreadID() + 1) . "')";
                    $db2 = new PDO('mysql:host=' . $mysql_hostname . ';dbname=' . $mysql_database, $mysql_username, $mysql_password);
                    $req2 = $db2->prepare($sql . $sql2);
                    $req2->execute();
                    //var_dump($req2->errorInfo());
                    Header(sprintf('Location: ./forum_thread.php?id=%d', $dev->getLastThreadID()));
                }
            } else {
                unset($_SESSION['user']);
                header('Location: ./index.php');
            }
        } else {
            header('Location: ./index.php');
        }
    }