From fa42b4840317c56f026668d5472b8b4e4bb17cab Mon Sep 17 00:00:00 2001
From: fidian <fidian@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Thu, 10 May 2001 19:13:15 +0000
Subject: [PATCH] * Further optimization

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@1349 7612ce4b-ef26-0410-bec9-ea0150e637f0
---
 functions/prefs.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/functions/prefs.php b/functions/prefs.php
index 76704e93..d2d75560 100644
--- a/functions/prefs.php
+++ b/functions/prefs.php
@@ -103,6 +103,12 @@
       global $prefs_cache;
       
       cachePrefValues($data_dir, $username);
+      if ($prefs_cache[$string] == $set_to)
+         return;
+      if ($set_to == '') {
+         removePref($data_dir, $username, $string);
+	 return;
+      }
       $prefs_cache[$string] = $set_to;
       savePrefValues($data_dir, $username);
    }
-- 
2.25.1