From 6b24e35e79ff38e3253dca5f6a99aad11c227648 Mon Sep 17 00:00:00 2001
From: Petr Skoda <skodak@moodle.org>
Date: Wed, 11 Aug 2010 09:57:21 +0000
Subject: [PATCH] MDL-23740 fixed PARAM_TAG compatibility with utf-8 chars

---
 lib/moodlelib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index f0e32fd6deb..40ab8290166 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -709,7 +709,7 @@ function clean_param($param, $type) {
             //problem, so remove *all* backslash.
             //$param = str_replace('\\', '', $param);
             //remove some nasties
-            $param = preg_replace('~[[:cntrl:]]|[<>`]~', '', $param);
+            $param = preg_replace('~[[:cntrl:]]|[<>`]~u', '', $param);
             //convert many whitespace chars into one
             $param = preg_replace('/\s+/', ' ', $param);
             $textlib = textlib_get_instance();
-- 
2.43.0