Doctrine\MongoDB\Connection::getReadPreference PHP Method

For driver versions between 1.3.0 and 1.3.3, the return value will be converted for consistency with {@link Connection::setReadPreference()}.

See also: http://php.net/manual/en/mongoclient.getreadpreference.php

public getReadPreference ( ) : array
return	array

    public function getReadPreference()
    {
        $this->initialize();
        return $this->mongoClient->getReadPreference();
    }

Connection