我的语言已经改变，但我没有任何结果

i am beginner in yii framwork i want to change language in my project i tried but it was ineffective i explain steps then u help me and tell my wrong i did:

add 'sourceLanguage'=>'en_us', and 'language'=>'fa-ir' in \protected\config\main.php copy fa-ir folder fromyii\framework\messages copy to myprojectname\protected\messages add to myprojectname\protected\views\site below code

$lang = Yii::app()->language;
echo "my lang is:::::".$lang;
Yii::t('zii','Delete');
Yii::t('yii','Get a new code');

my language has been change but i have not any result

i think i must to clean catch files in directory

you can follow this link for guid through setting up your language support. have you done setting up your message folder?

Change language in YII

this link is good for maintaining a language support