From eeecf5a704bcd68bcb3add466f0e8c9af4f13fba Mon Sep 17 00:00:00 2001
From: mudrd8mz <mudrd8mz>
Date: Fri, 4 Sep 2009 21:53:24 +0000
Subject: [PATCH] Fixing an incorrect concatenate of CSS classes arrays

array + array does not add new items if their numeric keys are the same. This
lead to the bug that add_classes() did not work correctly.
---
 lib/outputcomponents.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/outputcomponents.php b/lib/outputcomponents.php
index bc1618d2d5..df9d76297a 100644
--- a/lib/outputcomponents.php
+++ b/lib/outputcomponents.php
@@ -109,7 +109,7 @@ class moodle_html_component {
      * @return void
      */
     public function add_classes($classes) {
-        $this->classes += self::clean_classes($classes);
+        $this->classes = array_merge($this->classes, self::clean_classes($classes));
     }
 
     /**
-- 
2.39.5