From 3c78ad763ebb0e09ad5524ba08fa6e83feffe102 Mon Sep 17 00:00:00 2001
From: Ilia Alshanetsky <iliaa@php.net>
Date: Mon, 26 Apr 2010 18:35:54 +0000
Subject: [PATCH] Fixed handling of session variable serialization on certain
 prefix characters. Reported by Stefan Esser

---
 ext/session/session.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/session/session.c b/ext/session/session.c
index f80efdae3608f..03055cfca9486 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -770,7 +770,7 @@ PS_SERIALIZER_ENCODE_FUNC(php) /* {{{ */
 
 	PS_ENCODE_LOOP(
 			smart_str_appendl(&buf, key, key_length);
-			if (memchr(key, PS_DELIMITER, key_length)) {
+			if (memchr(key, PS_DELIMITER, key_length) || memchr(key, PS_UNDEF_MARKER, key_length)) {
 				PHP_VAR_SERIALIZE_DESTROY(var_hash);
 				smart_str_free(&buf);
 				return FAILURE;