+
+ $sql = "select param_value from tt_site_config where param_name = 'version_db'";
+ $res = $conn->query($sql);
+ if (is_a($res, 'MDB2_Error')) {
+ die('<font color="red">Error: database schema version query failed. '.$res->getMessage().'</font><br>');
+ } else {
+ $val = $res->fetchRow();
+ echo('Current database version is: '.$val['param_value'].'.');
+ }
+