From 82380a1ff582d4c5928504398a86dce27a5c51d9 Mon Sep 17 00:00:00 2001
From: deffyc <deffyc@users.noreply.github.com>
Date: Fri, 17 Jun 2016 01:19:49 +0800
Subject: [PATCH] Update Data.php

becourse of some reason,some languages has many forms in their history.eg:cn has zh and tw
---
 helpers/Data.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/helpers/Data.php b/helpers/Data.php
index 1d054f3..57cbf52 100644
--- a/helpers/Data.php
+++ b/helpers/Data.php
@@ -25,6 +25,8 @@ public static function cache($key, $duration, $callable)
 
     public static function getLocale()
     {
-        return strtolower(substr(Yii::$app->language, 0, 2));
+        $muti_lan_array=['zh-cn','zh-tw'];
+		$language=strtolower(trim(Yii::$app->language));
+        return in_array($language,$muti_lan_array,false)?$language:substr($language, 0, 2); 
     }
-}
\ No newline at end of file
+}