Index: trunk/kernel/include/adodb/drivers/adodb-mysql.inc.php
===================================================================
diff -u -r7867 -r8029
--- trunk/kernel/include/adodb/drivers/adodb-mysql.inc.php	(.../adodb-mysql.inc.php)	(revision 7867)
+++ trunk/kernel/include/adodb/drivers/adodb-mysql.inc.php	(.../adodb-mysql.inc.php)	(revision 8029)
@@ -50,6 +50,10 @@
 	// if magic quotes disabled, use mysql_real_escape_string()
 	function qstr($s,$magic_quotes=false)
 	{
+		if (is_null($s)) {
+			return 'NULL';
+		}
+		
 		if (!$magic_quotes) {
 		
 			if (ADODB_PHPVER >= 0x4300) {