How to pass an array to a controller?

[eluser]Boris Strahija[/eluser]
Why wouldn't you use sessions for this. For me this would be the most logical sollution.
A front end fo an application can also have sessions

Other suggestions would be passing the array by form submission, or storing it into a database, but every user would then need some kind of a token, so that's actually a session
You can also write the data into a txt file, but I don't think that's a good idea, because of security issues.

My suggestions is, use session. If possible with a database, because in this way you can store much more data into a session.
If you use a cookie the data size is limited.