From 832f6508f5c8c2a601e7d128c980d0f2cf2981e3 Mon Sep 17 00:00:00 2001
From: kissit <brian@kissitconsulting.com>
Date: Fri, 13 Feb 2026 22:37:43 -0500
Subject: [PATCH] Fix deprecation notice for passing a null to preg_replace

---
 system/core/Common.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/system/core/Common.php b/system/core/Common.php
index c7bb34549b5..bcb1f1aa36d 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -727,7 +727,7 @@ function remove_invisible_characters($str, $url_encoded = TRUE)
 
 		do
 		{
-			$str = preg_replace($non_displayables, '', $str, -1, $count);
+			$str = preg_replace($non_displayables, '', (string)$str, -1, $count);
 		}
 		while ($count);