(PECL solr >= 0.9.2) Destructor public void

(PECL solr >= 0.9.2) Used for custom serialization

(PECL solr >= 1.1.0, >=2.0.0) Returns internal information where the Exception was thrown

(PECL solr >= 0.9.2) Returns whether or not the query will be boosted by the interesting term relevance

(PECL solr >= 2.2.0) If true, the result of the first field grouping command is used as the main result list

(PECL solr >= 2.2.0) If true, facet counts are based on the most relevant document of each group matching

(PECL solr >= 0.9.2) Returns the raw response headers from the server