Question

I am trying to build a web app like this using php, it has two pages:

select.php has some radio buttons in a html form for users to choose. and there is a submit button post the form to a confirmation page.

confirm.php echos the summery from previous page and there is a “back” button allow users to change their selections in the previous page.

In this point, when I hit the “back” button and previous page restored, I would like all my previous selections displayed. (more clearly, if I chose a radio button and submit in select.php, I want the radio button still being chose after I go back to select page by hitting “back” button from confirm.php page.)

Please give me some idea about how to do this kind of restore page thing.

Answer 1

1. Save your selection in session.
2. In select.php pre-select the radio buttons if its found in session.

BTW, You should not rely on back button of browser. Create you own back button on confirm.php page. This back button will go to select.php using no history.back()