How can PHP sessions be used to track user navigation and prevent pages from being loaded from the cache when the user goes back?

To track user navigation and prevent pages from being loaded from the cache when the user goes back, you can use PHP sessions to store the navigation history. By checking the session data on each page load, you can determine if the user is navigating backward and force a page refresh if needed. 

<?php
session_start();

// Store current page in session
$_SESSION['current_page'] = $_SERVER['REQUEST_URI'];

// Check if user is navigating backward
if(isset($_SESSION['current_page']) && $_SESSION['current_page'] != $_SERVER['REQUEST_URI']) {
    header("Cache-Control: no-cache, must-revalidate");
    header("Location: " . $_SESSION['current_page']);
    exit;
}

Keywords

PHP sessions user navigation prevent cache page loading back button

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