MDL-19823 Fixed un-handled case of emty array in foreach loop

diff --git a/tag/lib.php b/tag/lib.php
index e5f1ac1ea21b34e41bcb16ebc8a44ebb015ce643..9e9b2fffed8cf9f949011c6614e28551ed995e9d 100644 (file)
--- a/tag/lib.php
+++ b/tag/lib.php
@@ -92,6 +92,10 @@ function tag_set($record_type, $record_id, $tags) {
         }
     }
 
+    if (empty($tags)) {
+        return true;
+    }
+
     foreach($tags as $ordering => $tag) {
         $tag = trim($tag);
         if (!$tag) {