SolrQuery::setEchoHandler Toggles the echoHandler parameter &reftitle.description; public SolrQuerySolrQuery::setEchoHandler boolflag If set to true, Solr places the name of the handle used in the response to the client for debugging purposes. &reftitle.parameters; flag &true; or &false; &reftitle.returnvalues; Returns the current SolrQuery object, if the return value is used.