Yii: GetText _() vs Yii::t()

Question

When translating strings in Yii with GetText, do we have to use Yii::t($category,\'message\') or gettext\'s _(\'message\') syntax?

And then how

Answer 1

I always use Yii::t('xx','yy') in order to have more control on localization. I can split in more file under

message/LANG/file.php

with

 'localized',
  );
?>

This for Yii Framework 1.x