Php/docs/solrcollapsefunction.setfield
From Get docs
SolrCollapseFunction::setField
(PECL solr >= 2.2.0)
SolrCollapseFunction::setField — Sets the field to collapse on
Description
public SolrCollapseFunction::setField
( string $fieldName
) : SolrCollapseFunction
The field name to collapse on. In order to collapse a result. The field type must be a single valued String, Int or Float.
Parameters
fieldName
