Index: branches/5.1.x/core/kernel/db/db_connection.php
===================================================================
diff -u -N -r12127 -r12657
--- branches/5.1.x/core/kernel/db/db_connection.php	(.../db_connection.php)	(revision 12127)
+++ branches/5.1.x/core/kernel/db/db_connection.php	(.../db_connection.php)	(revision 12657)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: db_connection.php 11927 2009-07-19 12:33:08Z alex $
+* @version	$Id: db_connection.php 12657 2009-10-04 20:07:31Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -12,6 +12,8 @@
 * See http://www.in-portal.net/license/ for copyright notices and details.
 */
 
+	defined('FULL_PATH') or die('restricted access!');
+
 	/**
 	 * Multi database connection class
 	 *
@@ -574,6 +576,8 @@
 		 * Otherwise returns as-is
 		 *
 		 * @param mixed $string
+		 *
+		 * @return string
 		 */
 		function qstr($string)
 		{
@@ -589,6 +593,22 @@
 		}
 
 		/**
+		 * Escapes strings (only work since PHP 4.3.0)
+		 *
+		 * @param mixed $string
+		 *
+		 * @return string
+		 */
+		function escape($string)
+		{
+			if ( is_null($string) ) {
+				return 'NULL';
+			}
+
+			return mysql_real_escape_string($string, $this->connectionID);
+		}
+
+		/**
 		 * Returns last error code occured
 		 *
 		 * @return int
@@ -698,5 +718,4 @@
 		{
 			return Array ('time' => $this->_queryTime, 'count' => $this->_queryCount);
 		}
-	}
-?>
\ No newline at end of file
+	}
\ No newline at end of file