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-5b77c550c0bc8927030629/] [crayon-5b77c550c0beb262997594/] [crayon-5b77c550c0c00842538239/] [crayon-5b77c550c0c13813491542/]