How can sessions be effectively utilized in PHP to track and maintain user progress in a quiz or form?

To track and maintain user progress in a quiz or form in PHP, sessions can be effectively utilized. By storing user responses and progress in session variables, the data can be maintained across multiple pages and requests. This allows users to continue where they left off without losing their progress. 

<?php
session_start();

// Check if user has submitted a form
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Store user response in session variable
    $_SESSION['question1'] = $_POST['question1'];
    $_SESSION['question2'] = $_POST['question2'];
    // Add more questions as needed

    // Redirect user to next question or result page
    header("Location: next_question.php");
    exit();
}

// Retrieve user progress from session
$question1_response = isset($_SESSION['question1']) ? $_SESSION['question1'] : '';
$question2_response = isset($_SESSION['question2']) ? $_SESSION['question2'] : '';
// Retrieve more questions as needed

// Display form with user's previous responses filled in
?>

Keywords

sessions PHP user progress quiz form tracking

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