I haven't understood very well the topic about the cookies. In my webpage I have 4 flags in the footer like this:
When you click on them, a very simple php script is executed and it creates a cookie with a parameter for the language (us, it, ger, fre). In short, I am using cookies ONLY to save the user preference about the language that will be displayed in the website.
In this case, do I have to show a message about cookies or not?
The cookie law is rather simple. Look at the citation from the link below.
"Compliance with the cookie law comes down to three basic steps:
(Basically, the user must be informed that you use a cookie, and then you can make a page where the user can see what you use your cookies for.)