From 1d08a8d157fe76c98abec7664f9eeddf654ff546 Mon Sep 17 00:00:00 2001
From: Ilia Alshanetsky <iliaa@php.net>
Date: Tue, 27 Feb 2007 00:15:21 +0000
Subject: [PATCH] Fixed bug #40637 (Regression in strip_tags() in relation so
 quote handling)

---
 ext/standard/string.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ext/standard/string.c b/ext/standard/string.c
index a82aa0c34f5..c65da880877 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -4263,8 +4263,12 @@ PHPAPI size_t php_strip_tags_ex(char *rbuf, int len, int *stateptr, char *allow,
 					tp = ((tp-tbuf) >= PHP_TAG_BUF_SIZE ? tbuf: tp);
 					*(tp++) = c;
 				}
-				if (p != buf && *(p-1) != '\\') {
-					in_q = !in_q;
+				if (p != buf && *(p-1) != '\\' && (!in_q || *p == in_q)) {
+					if (in_q) {
+						in_q = 0;
+					} else {
+						in_q = *p;
+					}
 				}
 				break;