Easiest way to persist data on a PHP page
<p>I a web application that I am developing (being developed in PHP) when a user posts any request for service the user has to fill in a very length form.</p>

<p>Once user fills in the form and submits it another page (confirmation page) is loaded in which all values filled in by user are show. I must point out that at this stage the data is not saved to MySQL yet. Now on this page the user can either save the service request or go back. </p>

<p>My problem starts here. When the user <strong>goes back</strong>. All <strong>data</strong> filled in is <strong>lost</strong>. BTW User tend to use Browsers Back button instead of the back button provided on the confirmation page.</p>

<p>How can is persist data filled in by user so that user can edit/make changes to data and again submit changed data.</p>
