(PECL mongo >=1.3.0)
Creates a new database connection object
public MongoClient::__construct ([ string $server = "mongodb://localhost:27017" [, array $options = array("connect" => TRUE) [, array $driver_options ]]] )
If no parameters are passed, this connects to "localhost:27017" (or whatever was specified in php.ini for mongo.default_host and mongo.default_port).
server should have the form:
mongodb://[username:password@]host1[: