Phalcon\Db\Adapter\MongoDB\Client::dropDatabase PHP Method

    public function dropDatabase($databaseName, array $options = [])
    {
        if (!isset($options['typeMap'])) {
            $options['typeMap'] = $this->typeMap;
        }
        $operation = new DropDatabase($databaseName, $options);
        $server = $this->manager->selectServer(new ReadPreference(ReadPreference::RP_PRIMARY));
        return $operation->execute($server);
    }