(PHP 4 >= 4.0.5, PHP 5 <= 5.0.5, PECL mnogosearch:1.0.0)
udm_get_doc_count — Get total number of documents in database
udm_get_doc_count() returns the number of documents in the database.
Returns the number of document.
Note: This function is supported only in mnoGoSearch 3.1.11 or later.