From ca35eda1da0214d82fa8f21d5991f5e784dc14c0 Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Tue, 17 Jan 2023 21:04:33 +0900
Subject: [PATCH] Fix #2068 type error in utf8_clean()

---
 common/functions.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/functions.php b/common/functions.php
index 60b8bef90..7aa79e052 100644
--- a/common/functions.php
+++ b/common/functions.php
@@ -623,6 +623,7 @@ function utf8_check($str)
 function utf8_clean($str)
 {
 	// Check if the input is a valid UTF-8 string.
+	$str = (string)$str;
     if (!utf8_check($str))
     {
         $str = @iconv('UTF-8', 'UTF-8//IGNORE', $str);