From 103998d8ba4c7e65e3d83e16560a86c2f0d891fb Mon Sep 17 00:00:00 2001
From: augushong <augushong@163.com>
Date: Sat, 22 Mar 2025 17:11:14 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E8=A7=86=E5=9B=BE?=
 =?UTF-8?q?=E8=8C=83=E5=9B=B4=E7=B1=BB=E7=BB=84=E4=BB=B6=E5=A4=84=E7=90=86?=
 =?UTF-8?q?=E5=8F=98=E9=87=8F=E6=97=B6=E6=B2=A1=E6=9C=89=E5=85=BC=E5=AE=B9?=
 =?UTF-8?q?null=E5=80=BC=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 extend/base/helper.php              | 14 ++++++++++++--
 extend/think/template/taglib/Cx.php |  2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/extend/base/helper.php b/extend/base/helper.php
index f6c44c1..d43419e 100644
--- a/extend/base/helper.php
+++ b/extend/base/helper.php
@@ -270,7 +270,7 @@ function event_handle_result($name, $key, $type = 'all', $params = []) : array
 }
 
 /**
- * 字符拼接通用处理函数
+ * 字符拼接通用处理函数.
  *
  * @param string $name
  * @param string $type
@@ -286,7 +286,7 @@ function event_handle_string($name, $type)
 
 function event_view_content($name)
 {
-   return event_handle_string($name, 'view_content');
+    return event_handle_string($name, 'view_content');
 }
 
 function event_view_replace($content, $name)
@@ -418,3 +418,13 @@ if (!function_exists('get_site_version_key')) {
         return sysconfig('site', 'site_version') . '-' . Version::VERSION . '-' . Version::PRODUCT_VERSION . '-' . Version::LAYUI_VERSION;
     }
 }
+if (!function_exists('format_null_value')) {
+    function format_null_value($value)
+    {
+        if (is_null($value)) {
+            return '';
+        }
+
+        return $value;
+    }
+}
diff --git a/extend/think/template/taglib/Cx.php b/extend/think/template/taglib/Cx.php
index cbbfabe..5faedcd 100644
--- a/extend/think/template/taglib/Cx.php
+++ b/extend/think/template/taglib/Cx.php
@@ -385,7 +385,7 @@ class Cx extends Taglib
 
         if ('$' == $flag || ':' == $flag) {
             $value = $this->autoBuildVar($value);
-            $str   = 'is_array(' . $value . ')?' . $value . ':explode(\',\',' . $value . ')';
+            $str   = 'is_array(' . $value . ')?' . $value . ':explode(\',\',format_null_value(' . $value . '))';
         } else {
             $value = '"' . $value . '"';
             $str   = 'explode(\',\',' . $value . ')';