From b0297af32f008676165db867aeccf8bcf666dc87 Mon Sep 17 00:00:00 2001
From: lyt <lyt@hainatravel.com>
Date: Wed, 27 Sep 2017 10:31:24 +0800
Subject: [PATCH] ipaylinks warning refer

---
 webht/third_party/pay/controllers/iPayLinksService.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/webht/third_party/pay/controllers/iPayLinksService.php b/webht/third_party/pay/controllers/iPayLinksService.php
index 559ded7d..9a36a765 100644
--- a/webht/third_party/pay/controllers/iPayLinksService.php
+++ b/webht/third_party/pay/controllers/iPayLinksService.php
@@ -687,7 +687,7 @@ class IPayLinksService extends CI_Controller
             $ret->data = $respObject = (Object) $resp;
             $ref = "";
         } else {
-            $ref = $_SERVER['HTTP_REFERER'];
+            $ref = $_SERVER['HTTP_REFERER'] ? $_SERVER['HTTP_REFERER'] : NULL;
             $r = iconv("UTF-8", "UTF-8//IGNORE", $resp);
             $ret->data = $respObject = @ simplexml_load_string($resp);
             // test