(PECL solr >= 2.2.0) Returns The number of rows to display in each group (expand.rows)

(PECL solr >= 2.2.0) Enables/Disables the Expand Component

(PECL solr >= 2.2.0) Returns an array of fields

(PECL solr >= 0.9.2) Returns the maximum number of characters of the field to return

(PECL solr >= 2.2.0) Returns group cache percent value

(PECL solr >= 0.9.2) Returns whether or not stats is enabled

(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) Returns group functions (group.func parameter values)

(PECL solr >= 0.9.2) Returns all the fields that Solr should generate highlighted snippets for

(PECL solr >= 0.9.2) Returns whether or not the TermsComponent is enabled