From 0c3739289aecfc809c1d4abf300ccf734ea4a6ab Mon Sep 17 00:00:00 2001
From: chiachin <chiachin@netivism.com.tw>
Date: Tue, 12 Nov 2024 17:28:46 +0800
Subject: [PATCH] Refs #41997, Fix type check for customValue to handle
 non-array input in CheckBox field.

---
 CRM/Core/BAO/CustomGroup.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CRM/Core/BAO/CustomGroup.php b/CRM/Core/BAO/CustomGroup.php
index f7a1386fd..16822d38f 100644
--- a/CRM/Core/BAO/CustomGroup.php
+++ b/CRM/Core/BAO/CustomGroup.php
@@ -1261,7 +1261,7 @@ static function postProcess(&$groupTree, &$params, $skipFile = FALSE) {
 
           case 'CheckBox':
             if (!empty($v)) {
-              $customValue = array_keys($v);
+              $customValue = is_array($v) ? array_keys($v) : [];
               $groupTree[$groupID]['fields'][$fieldId]['customValue']['data'] = CRM_Core_DAO::VALUE_SEPARATOR . CRM_Utils_Array::implode(CRM_Core_DAO::VALUE_SEPARATOR, $customValue) . CRM_Core_DAO::VALUE_SEPARATOR;
             }
             else {