Savsoft correct_answer

General
1

after creating and starting the quiz, how can I create a session variable that for each answer I give, the application evaluates whether it is a correct answer and displays in the header the total number of correct answers each time the button is chosen NEXT?

I tried to initialize a session variable $_SESSION[‘counter’] in the quiz.php controller in the saved_answer method, but it is not incremented.

2

1. Initialize Session Variable:

  • In your quiz.php controller, initialize the counter session variable before the saved_answer method:

PHP

public function __construct()
{
    parent::__construct();
    $this->load->library('session');
    if (!isset($_SESSION['counter'])) {
        $_SESSION['counter'] = 0;
    }
}

2. Update saved_answer Method:

  • Modify the saved_answer method to evaluate the user’s answer, update the counter session variable, and redirect to the next question:

PHP

public function saved_answer()
{
    $id_question = $this->input->post('id_question');
    $answer = $this->input->post('answer');

    // Retrieve the correct answer from your database
    $correctAnswer = $this->your_model->get_correct_answer($id_question);

    if ($answer == $correctAnswer) {
        $_SESSION['counter']++;
    }

    // Redirect to the next question or display results if all questions are answered
    // ... your logic here
}

Display Correct Answer Count in Header:

  • In your quiz.php view or layout, use a PHP variable to display the counter session variable in the header:
    HTML
<header>
    <p>Correct Answers: <?php echo $_SESSION['counter']; ?></p>
</header>

4. Additional Considerations:

  • Error Handling: Implement error handling to catch potential issues when retrieving the correct answer or updating the session variable.
  • Security: If you’re using a database to store answers and correct answers, ensure proper security measures are in place to prevent cheating or unauthorized access.
  • User Experience: Consider providing feedback to the user after each answer, such as showing whether the answer was correct or incorrect.
  • Session Management: If you have other session variables, ensure they are handled correctly and don’t interfere with the counter variable.

By following these steps, you should be able to effectively track correct answers and display the count in the header of your quiz application.