/**
* gets the number of rows in result
*
* @param mixed query resource
*
* @return int number of rows
*
* @access public
*
* @author patrick.kracht
*/
public function num_rows($query_id = -1)
{
if ($query_id != -1) {
self::$query_id = $query_id;
}
return @mssql_num_rows(self::$query_id);
}
