From 1f5b298edb9216c9718d91104895e22797c5309c Mon Sep 17 00:00:00 2001
From: Seamus Lee <seamuslee001@gmail.com>
Date: Thu, 2 Feb 2023 12:41:08 +1100
Subject: [PATCH] [REF] Use Civi::statics in CRM_Utils_File instead of php
 static

---
 CRM/Utils/File.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CRM/Utils/File.php b/CRM/Utils/File.php
index bc882aa8f44f..b9355b14c8f4 100644
--- a/CRM/Utils/File.php
+++ b/CRM/Utils/File.php
@@ -352,8 +352,7 @@ public static function stripComments($string) {
    * @return bool
    */
   public static function isExtensionSafe($ext) {
-    static $extensions = NULL;
-    if (!$extensions) {
+    if (!isset(Civi::$statics[__CLASS__]['file_extensions'])) {
       $extensions = CRM_Core_OptionGroup::values('safe_file_extension', TRUE);
 
       // make extensions to lowercase
@@ -370,9 +369,10 @@ public static function isExtensionSafe($ext) {
         unset($extensions['html']);
         unset($extensions['htm']);
       }
+      Civi::$statics[__CLASS__]['file_extensions'] = $extensions;
     }
     // support lower and uppercase file extensions
-    return (bool) isset($extensions[strtolower($ext)]);
+    return (bool) isset(Civi::$statics[__CLASS__]['file_extensions'][strtolower($ext)]);
   }
 
   /**