Single login for multiple YII web applications

Good day to all,

I am new with yiiframework and it was my first framework I used, I already have 2 small web applications developed using yiiframework. However, the 2 applications is used by the same group and they wanted to have a single login, is it posible in yiiframework to have a different webapp portal for single login within 2 different web applications?

My plan is to have another web application that will link to 2 different web applications, when user successfully logs in to portal application it should bypass the login page in 2 web applications when click the link?