How can GET variables be used to manage page access and redirection in PHP applications?

GET variables can be used in PHP applications to manage page access and redirection by passing parameters in the URL. By checking the values of these variables, you can control which pages users can access and redirect them accordingly. This can be useful for implementing access control, user authentication, and dynamic page content based on user input. 

<?php
// Check if the 'access' GET variable is set
if(isset($_GET['access'])) {
    $accessLevel = $_GET['access'];

    // Check the access level and redirect accordingly
    if($accessLevel == 'admin') {
        header('Location: admin.php');
        exit();
    } else {
        header('Location: unauthorized.php');
        exit();
    }
}
?>

Keywords

GET variables page access redirection PHP applications error types

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