From 2d548a026fa0b476cdf74dce28d2735e3a3b91e9 Mon Sep 17 00:00:00 2001
From: 3D-I <480857+3D-I@users.noreply.github.com>
Date: Thu, 31 Dec 2020 22:30:10 +0100
Subject: [PATCH] [ticket/16641] Fix config.php validation in ACP - PHP 8

PHPBB3-16641
---
 phpBB/includes/acp/acp_main.php | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/phpBB/includes/acp/acp_main.php b/phpBB/includes/acp/acp_main.php
index 77862e3b46..a46ac2c16f 100644
--- a/phpBB/includes/acp/acp_main.php
+++ b/phpBB/includes/acp/acp_main.php
@@ -681,9 +681,8 @@ class acp_main
 
 		if (!defined('PHPBB_DISABLE_CONFIG_CHECK'))
 		{
-			$phpbb_config_file = $phpbb_root_path . 'config.' . $phpEx;
-
-			$template->assign_var('S_WRITABLE_CONFIG', (bool) $phpbb_filesystem->is_writable($phpbb_config_file) || (@fileperms($phpbb_config_file) & 0x0002));
+			// World-Writable? (000x)
+			$template->assign_var('S_WRITABLE_CONFIG', (bool) (@fileperms($phpbb_root_path . 'config.' . $phpEx) & 0x0002));
 		}
 
 		$this->php_ini			= $phpbb_container->get('php_ini');