How can PHP be used to reconstruct the previously displayed page without relying on the previous request?

When a user navigates away from a page and then uses the browser's back button to return, the previous page is typically reloaded using the browser's cached version. This can be problematic if the page content is dynamic and needs to be reconstructed based on the latest data. To overcome this issue, PHP can be used to store the necessary data in sessions or cookies so that the page can be reconstructed without relying on the previous request.

// Start session to store necessary data
session_start();

// Store data in session
$_SESSION['dynamic_data'] = "This is dynamic content that needs to be reconstructed";

// Retrieve data from session to reconstruct the page
$dynamic_content = isset($_SESSION['dynamic_data']) ? $_SESSION['dynamic_data'] : "Default content if data is not available";

// Use the $dynamic_content variable to display the reconstructed page
echo $dynamic_content;