From 32882fd798ae0fe7e51f5c7ef2ff8501a5b57251 Mon Sep 17 00:00:00 2001
From: Andreas Fischer <bantu@phpbb.com>
Date: Thu, 1 Jul 2010 23:29:25 +0200
Subject: [PATCH] [ticket/9694] Make sure string offset 0 exists to avoid
 E_NOTICE message.

PHPBB3-9694
---
 phpBB/download/file.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpBB/download/file.php b/phpBB/download/file.php
index 2154847865..03a37a58b4 100644
--- a/phpBB/download/file.php
+++ b/phpBB/download/file.php
@@ -61,7 +61,7 @@ if (isset($_GET['avatar']))
 	$avatar_group = false;
 	$exit = false;
 
-	if ($filename[0] === 'g')
+	if (isset($filename[0]) && $filename[0] === 'g')
 	{
 		$avatar_group = true;
 		$filename = substr($filename, 1);