If we want to change language of a particular action in YII or for the whole application we need to , set CApplication::language . This can be done at runtime as in [crayon-5cb8e09a05c19099194798/] [crayon-5cb8e09a05c33494561223/] [crayon-5cb8e09a05c44440623840/] [crayon-5cb8e09a05c54672971802/]