<?php include "bootstrap.php"; $options = array('hostname' => SOLR_SERVER_HOSTNAME, 'login' => SOLR_SERVER_USERNAME, 'password' => SOLR_SERVER_PASSWORD, 'port' => SOLR_SERVER_PORT, 'path' => SOLR_SERVER_PATH); $client = new SolrClient($options); $update_response = $client->optimize(4, false, false); $response = $update_response->getRawRequest(); print_r($response);