Update UUID.class.php

helper/UUID.class.php

@@ -12,8 +12,8 @@
  * @author Andrew Moore
  * @link http://www.php.net/manual/en/function.uniqid.php#94959
  */
-class UUID
-{
+if(!class_exists("UUID")) {
+    class UUID {
         /**
          * Generate v3 UUID
          *
@@ -150,5 +150,5 @@ class UUID
             return preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?'.
                           '[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/i', $uuid) === 1;
         }
+    }
 }
-?>