Keep filter data in laravel

I have a page with table of some data (let's say posts). I have a form there which leads to the same page but with get parameters. So when I choose December in dropdown list form will lead to posts/index?month=december. Controller index method makes eloquent query using query string parameters to filter rows. After that I click edit post(or add new post) and change something through edit form. Then update or store method redirects back to index as usually. What is the best way to come back to index?month=december page? Sessions? How should I do it? Set some values from query to session in Controller index method when I come there first time and get them also in Controller method from session after editing/creating?

via Chebli Mohamed