function getSolrVersion($solr_host, $solr_port, $solr_baseurl, $solr_corename)
{
if ($solr_baseurl == "undefined") {
$solr_baseurl = "";
}
if ($solr_corename == "undefined") {
$solr_corename = "";
}
$solr = new Solr();
if ($solr->connect($solr_host, $solr_port, $solr_baseurl, $solr_corename)) {
return $solr->getVersion();
}
return "";
}