diff --git a/function/common.php b/function/common.php
index 1944d70..f2aa455 100644
--- a/function/common.php
+++ b/function/common.php
@@ -1,5 +1,21 @@
 <?php
 
+$commonEnv = [
+    //'APIKey', // used in heroku.
+    //'Region', // used in SCF.
+    //'SecretId', // used in SCF.
+    //'SecretKey', // used in SCF.
+    //'admin',
+    'adminloginpage',
+    'background',
+    //'disktag',
+    //'function_name', // used in heroku.
+    'language',
+    'passfile',
+    'sitename',
+    'theme',
+];
+
 $innerEnv = [
     'Onedrive_ver',
     'client_id',