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-5c6764bf1fabf529171209/] [crayon-5c6764bf1fad1682256188/] [crayon-5c6764bf1fadc242139451/] [crayon-5c6764bf1fae6496596949/]