Display message on initial login only once without a module What method is there to show a message on a user that just logged into the site without using a module? I know rules can do it, but I dont want to install a module just to do that. Is there some type of indicator variable that gets set upon initial login?
I propose you to have a look at this: hook_user_login, it fires exact on user log-in. A sample code is provided on its documentation page ready to be configured and used.