--TEST-- SolrQuery::collapse - Collapse Using a SolrCollapseFunction --FILE-- <?php $query = new SolrQuery('lucene'); $collapseFunction = new SolrCollapseFunction('ISBN'); $collapseFunction->setMax(5); $query->collapse($collapseFunction); echo $query; ?> --EXPECTF-- q=lucene&fq={!collapse field=ISBN max=5}