From ad56160f6c422848a5320ee646e9f27d0d5a53bf Mon Sep 17 00:00:00 2001
From: Alex Killing <killing@leifos.de>
Date: Fri, 9 Aug 2024 11:47:19 +0200
Subject: [PATCH] fixed 41886: Fehler in Matrixfrage neutrale Antwort

---
 .../Categories/class.ilCategoryWizardInputGUI.php               | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/ILIAS/SurveyQuestionPool/Categories/class.ilCategoryWizardInputGUI.php b/components/ILIAS/SurveyQuestionPool/Categories/class.ilCategoryWizardInputGUI.php
index c55a835adc2c..45ed065b98e7 100755
--- a/components/ILIAS/SurveyQuestionPool/Categories/class.ilCategoryWizardInputGUI.php
+++ b/components/ILIAS/SurveyQuestionPool/Categories/class.ilCategoryWizardInputGUI.php
@@ -195,7 +195,7 @@ public function checkInput(): bool
 
         if (count($foundvalues) > 0) {
             // check answers
-            if (is_array($foundvalues['answer'])) {
+            if (is_array($foundvalues['answer'] ?? false)) {
                 foreach ($foundvalues['answer'] as $idx => $answervalue) {
                     if (((strlen($answervalue ?? "")) == 0) && ($this->getRequired() && (!isset($foundvalues['other'][$idx])))) {
                         $this->setAlert($lng->txt("msg_input_is_required"));