From 198e6a0ac4fc431006ca2e482e6fa53356899dfa Mon Sep 17 00:00:00 2001
From: Dnomd343 <dnomd343@163.com>
Date: Fri, 27 Aug 2021 20:34:40 +0800
Subject: [PATCH] fix: empty return of unknow detail

---
 backend/getInfo.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/backend/getInfo.php b/backend/getInfo.php
index 24b11f7..4c22d6d 100644
--- a/backend/getInfo.php
+++ b/backend/getInfo.php
@@ -99,6 +99,9 @@ function getIPInfo($ip) {
             $info['detail'] = $info['as'] . ' ' . $info['isp'];
         }
     }
+    if (trim($info['detail']) == '') {
+        $info['detail'] = null;
+    }
     return $info;
 }