From ee258ce15870e6cb4b733087368a062b5fd66b52 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Thu, 23 Jul 2009 08:12:27 -0400
Subject: [PATCH] - performance fix: don't check mbstring functions existence too often

---
 program/include/rcmail.php |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index 1721410..4624ee1 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -481,7 +481,7 @@
 
     // lowercase username if it's an e-mail address (#1484473)
     if (strpos($username, '@'))
-      $username = rc_strtolower($username);
+      $username = mb_strtolower($username);
 
     // user already registered -> overwrite username
     if ($user = rcube_user::query($username, $host))

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