From fce1ff5aa161bcb5e7bcddacf712547f7533705a Mon Sep 17 00:00:00 2001
From: skodak <skodak>
Date: Sun, 16 Sep 2007 19:31:56 +0000
Subject: [PATCH] MDL-11297 adding new PARAM_TAG - numeric tags not allowed

---
 lib/moodlelib.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 71645640221..af944264213 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -562,8 +562,9 @@ function clean_param($param, $type) {
             $param = preg_replace('/ +/', ' ', $param);
             $param = trim($param);
             $textlib = textlib_get_instance();
-            return $textlib->substr($param, 0, TAG_MAX_LENGTH);
-            
+            $param = $textlib->substr($param, 0, TAG_MAX_LENGTH);
+            //numeric tags not allowed
+            return is_numeric($param) ? '' : $param;
 
         case PARAM_TAGLIST:
             $tags = explode(',', $param);