(PECL solr >= 2.2.0) Returns the group.sort value

(PECL solr >= 2.2.0) Allows grouping results based on the unique values of a function query (group.func parameter)

(PECL solr >= 2.2.0) Enable/Disable result grouping (group parameter)

(PECL solr >= 2.2.0) Returns the expand query expand.q parameter

(PECL solr >= 0.9.2) Determines the ordering of the facet field constraints

(PECL solr >= 0.9.2) Removes one of the stats.facet parameters

(PECL solr >= 0.9.2) Maps to facet.date public

(PECL solr >= 2.2.0) Removes an expand filter query

(PECL solr >= 0.9.2) Maps to facet.date.hardend

(PECL solr >= 0.9.2) Returns the state of the hl parameter