From ffb0adfc59934dd6012394855f494872276b61b9 Mon Sep 17 00:00:00 2001
From: 3D-I <480857+3D-I@users.noreply.github.com>
Date: Sat, 21 Dec 2019 23:54:32 +0100
Subject: [PATCH] [ticket/16260] Missing check whether the index exists in ACP
 - PHP 7.4

PHPBB3-16260
---
 phpBB/includes/acp/acp_board.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/phpBB/includes/acp/acp_board.php b/phpBB/includes/acp/acp_board.php
index 2441a37edc..b0cefbd064 100644
--- a/phpBB/includes/acp/acp_board.php
+++ b/phpBB/includes/acp/acp_board.php
@@ -530,11 +530,13 @@ class acp_board
 
 			if ($submit)
 			{
-				if (strpos($data['type'], 'password') === 0 && $config_value === '********')
+				if (strpos(isset($data['type']) ? $data['type'] : '', 'password') === 0 && $config_value === '********')
 				{
-					// Do not update password fields if the content is ********,
-					// because that is the password replacement we use to not
-					// send the password to the output
+					/**
+					 * Do not update password fields if the content is ********,
+					 * because that is the password replacement we use to not
+					 * send the password to the output
+					 */
 					continue;
 				}
 				$config->set($config_name, $config_value);