From a109e8998388cb7af8d6fb38302ef0ce3ac712af Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Tue, 23 Nov 2021 17:01:08 +0300
Subject: [PATCH] mark clean() return value as nullable

---
 include/functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/functions.php b/include/functions.php
index 14de32e95..f4a218ce3 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -267,7 +267,7 @@
 	 *
 	 * @param mixed $param
 	 *
-	 * @return mixed
+	 * @return mixed|null
 	 */
 	function clean($param) {
 		if (is_array($param)) {