我需要在Laravel的MongoDB上使用事务。

我下载了php MongoDB驱动程序1.6，然后将php_mongodb.dll复制并粘贴到了php / ext文件夹中。

我还通过以下方式安装了php mongo库

composer require mongodb/mongodb

现在，当我尝试根据this使用事务时，发生错误时它不会回滚。

   $client = new Client($url);
    $callback = function (\MongoDB\Driver\Session $session) use ($client) {
        $data = [
            "name" => "Tommy",];
        $collection = $client->db1->users;
        $user = $collection->updateone(
            ['mobile' => '*'],['$set' => $data],[$session]
        );
        $data = [
            "activate" => 1,];
        $collection = $client->db1->wallets;
        $wallet1 = $collection->updateone(
            ['_id' => 100],['set' => $data],[$session]
        );

    };

    $session = $client->startSession();
    $transactionOptions = [
        'readConcern' => new \MongoDB\Driver\ReadConcern(\MongoDB\Driver\ReadConcern::LOCAL),'writeConcern' => new \MongoDB\Driver\WriteConcern(\MongoDB\Driver\WriteConcern::MAJORITY,1000),'readPreference' => new \MongoDB\Driver\ReadPreference(\MongoDB\Driver\ReadPreference::RP_PRIMARY),];

    try{
        \MongoDB\with_transaction($session,$callback,$transactionOptions);
        return true;

    }catch (\Exception $e)
    {
        return false;
    }

laravel中MongoDB\Driver\Session中的会话类未知，而该类用于mongodb> = 1.4.0。我不知道怎么了谁能帮我吗？