/** * Wrapper method for MongoClient::setReadPreference(). * * @see http://php.net/manual/en/mongoclient.setreadpreference.php * @param string $readPreference * @param array $tags * @return boolean */ public function setReadPreference($readPreference, array $tags = null) { $this->initialize(); if (isset($tags)) { return $this->mongoClient->setReadPreference($readPreference, $tags); } return $this->mongoClient->setReadPreference($readPreference); }