From 2e3b9fce49ddcbbc8301d35ae91b20d2b6feb9ea Mon Sep 17 00:00:00 2001
From: Philippe GRAND <philippe.grand@atoo-net.com>
Date: Sun, 22 Aug 2021 12:18:26 +0200
Subject: [PATCH] fix : Undefined array key 4 in
 C:\wamp64\www\dolibarr-140\htdocs\core\class\extrafields.class.php on line
 1721

---
 htdocs/core/class/extrafields.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index f6a5ba93d61..f64a1b44eb0 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -1718,7 +1718,7 @@ class ExtraFields
 
 			$sql = 'SELECT '.$keyList;
 			$sql .= ' FROM '.MAIN_DB_PREFIX.$InfoFieldList[0];
-			if (strpos($InfoFieldList[4], 'extra') !== false) {
+			if (!empty($InfoFieldList[4]) && strpos($InfoFieldList[4], 'extra') !== false) {
 				$sql .= ' as main';
 			}
 			if ($selectkey == 'rowid' && empty($value)) {