(PECL solr >= 0.9.2) Returns an array of all the names of the properties

(PECL solr >= 0.9.2) Unsets the value for the property

(PECL solr >= 0.9.2) Used to retrieve a property

(PECL solr >= 0.9.2) Creates Solr object public

(PECL solr >= 0.9.2) Destructor public void

(PECL solr >= 0.9.2) Checks if the property exists

(PECL solr >= 0.9.2) Sets the value for a property