upgrade

vendor/friendsofsymfony/user-bundle/Util/Canonicalizer.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the FOSUserBundle package.
+ *
+ * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FOS\UserBundle\Util;
+
+class Canonicalizer implements CanonicalizerInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function canonicalize($string)
+    {
+        if (null === $string) {
+            return;
+        }
+
+        $encoding = mb_detect_encoding($string);
+        $result = $encoding
+            ? mb_convert_case($string, MB_CASE_LOWER, $encoding)
+            : mb_convert_case($string, MB_CASE_LOWER);
+
+        return $result;
+    }
+}