From abe801a7ac314bbd36b70f0bff5b0ce538b92d08 Mon Sep 17 00:00:00 2001
From: kagla <kagla@naver.com>
Date: Thu, 16 Sep 2021 06:05:07 +0000
Subject: [PATCH] =?UTF-8?q?PHP8=EC=97=90=EC=84=9C=20=EB=82=98=EC=98=A4?=
 =?UTF-8?q?=EB=8A=94=20PHP=20Warning:=20=20Undefined=20array=20key=20"HTTP?=
 =?UTF-8?q?=5FUSER=5FAGENT"=20=EC=98=A4=EB=A5=98=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 bbs/visit_insert.inc.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bbs/visit_insert.inc.php b/bbs/visit_insert.inc.php
index 4aa235bd3..28232b330 100644
--- a/bbs/visit_insert.inc.php
+++ b/bbs/visit_insert.inc.php
@@ -14,7 +14,9 @@ if (get_cookie('ck_visit_ip') != $_SERVER['REMOTE_ADDR'])
     $referer = "";
     if (isset($_SERVER['HTTP_REFERER']))
         $referer = escape_trim(clean_xss_tags(strip_tags($_SERVER['HTTP_REFERER'])));
-    $user_agent  = escape_trim(clean_xss_tags(strip_tags($_SERVER['HTTP_USER_AGENT'])));
+    $user_agent = '';
+    if (isset($_SERVER['HTTP_USER_AGENT']))
+        $user_agent  = escape_trim(clean_xss_tags(strip_tags($_SERVER['HTTP_USER_AGENT'])));
     $vi_browser = '';
     $vi_os = '';
     $vi_device = '';