Index: kernel/db/db_connection.php
===================================================================
--- kernel/db/db_connection.php	(revision 15331)
+++ kernel/db/db_connection.php	(working copy)
@@ -1093,7 +1093,8 @@
 
 			// set 2nd checkpoint: begin
 			if ( $this->_profileSQLs ) {
-				$first_cell = count($ret) == 1 && count(current($ret)) == 1 ? current(current($ret)) : null;
+				$current_element = current($ret);
+				$first_cell = count($ret) == 1 && count($current_element) == 1 ? current($current_element) : null;
 
 				if ( strlen($first_cell) > 200 ) {
 					$first_cell = substr($first_cell, 0, 50) . ' ...';