From: Alexander Ebert <ebert@woltlab.com>
Date: Fri, 4 Aug 2023 11:16:43 +0000 (+0200)
Subject: Fix the handling of `NULL` values
X-Git-Tag: 6.0.0_Beta_1~14^2~2
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f312e1602dd6cace3c18da3589375ebbe410f996;p=GitHub%2FWoltLab%2FWCF.git

Fix the handling of `NULL` values

See https://www.woltlab.com/community/thread/300917-neue-benutzergruppe-anlegen-funktioniert-nicht-mit-php-8-1x/
---

diff --git a/wcfsetup/install/files/lib/system/option/LineBreakSeparatedTextOptionType.class.php b/wcfsetup/install/files/lib/system/option/LineBreakSeparatedTextOptionType.class.php
index 2144c49ae4..b6d71658e5 100644
--- a/wcfsetup/install/files/lib/system/option/LineBreakSeparatedTextOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/LineBreakSeparatedTextOptionType.class.php
@@ -23,7 +23,7 @@ class LineBreakSeparatedTextOptionType extends TextareaOptionType
      */
     public function getFormElement(Option $option, $value)
     {
-        $values = ArrayUtil::trim(\explode("\n", StringUtil::unifyNewlines($value)));
+        $values = ArrayUtil::trim(\explode("\n", StringUtil::unifyNewlines($value ?? '')));
         \uasort($values, 'strnatcmp');
 
         static $identifiers = [];