From eba06c0e1a4d5d9816c11ed1a0c6cdb380167303 Mon Sep 17 00:00:00 2001
From: Yuriy Pikhtarev <iglix@me.com>
Date: Fri, 5 May 2017 01:01:59 +0300
Subject: [PATCH] 'stristr(...)/stripos(...)/strripos(...)' could be replaced
 with 'strstr(...)/strpos()/strrpos()'.

---
 library/attach_mod/includes/functions_attach.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/attach_mod/includes/functions_attach.php b/library/attach_mod/includes/functions_attach.php
index 1fb8a9033..bb8764c72 100644
--- a/library/attach_mod/includes/functions_attach.php
+++ b/library/attach_mod/includes/functions_attach.php
@@ -410,7 +410,7 @@ function attachment_sync_topic($topics)
  */
 function get_extension($filename)
 {
-    if (false === stripos($filename, '.')) {
+    if (false === strstr($filename, '.')) {
         return '';
     }
     $extension = strrchr(strtolower($filename), '.');