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How do you handle flash data in FuelPHP sessions? - Code Stap
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How do you handle flash data in FuelPHP sessions?

How do you handle flash data in FuelPHP sessions?

In FuelPHP, flash data is typically used to pass temporary data between requests, such as showing a success message after a form submission. Flash data is stored in the session for one request and then automatically cleared.

Here’s a step-by-step guide to handling flash data in FuelPHP sessions, with an example:

1. Configuring Sessions

Ensure that sessions are properly configured in your fuel/app/config/session.php file. For most cases, the default configuration should work, but you might want to verify it:

Example


return array(
    'driver' => 'file',  // or 'database', 'redis', etc.
    'cookie_name' => 'fuel_session',
    'cookie_lifetime' => 0,
    'session_name' => 'fuel_session',
    'session_key' => 'session_data',
    'session_expiration' => 7200,  // 2 hours
    'session_cookie_lifetime' => 0,
    'session_cookie_domain' => '',
    'session_cookie_path' => '/',
    'session_cookie_httponly' => false,
);

Displaying Flash Data in Views

In your view file (fuel/app/views/another_page.php), you can display the flash message if it exists.

Example


<!DOCTYPE html>
<html>
<head>
    <title>Another Page</title>
</head>
<body>
    <?php if (!empty($message)): ?>
        <div class="flash-message">
            <?php echo $message; ?>
        </div>
    <?php endif; ?>
</body>
</html>

Full Example

Controller:

Example


class Controller_Form extends Controller
{
    public function action_submit()
    {
        // Process form data...

        // Set a flash message
        Session::set_flash('success', 'Your form has been submitted successfully!');

        // Redirect to another page
        Response::redirect('form/confirmation');
    }
    
    public function action_confirmation()
    {
        // Retrieve flash message
        $success_message = Session::get_flash('success');

        // Pass message to the view
        return View::forge('confirmation', array('message' => $success_message));
    }
}

Summary

  • Use Session::set_flash() to set flash data.
  • Use Session::get_flash() to retrieve and clear flash data.
  • Display flash data in views as needed.

This approach helps manage temporary data between requests, improving user experience by providing feedback on actions like form submissions.

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