What potential pitfalls should be considered when using PHP to create a quiz form with answer buttons?

One potential pitfall when using PHP to create a quiz form with answer buttons is the possibility of users manipulating the form data to cheat or submit incorrect answers. To prevent this, you can use server-side validation to verify the submitted answers against the correct answers stored in your database before processing the quiz results. 

// Assume $correctAnswers is an array containing the correct answers for the quiz

// Validate the submitted answers
$submittedAnswers = $_POST['answers']; // Assuming answers are submitted via POST method
$score = 0;

foreach ($submittedAnswers as $questionId => $submittedAnswer) {
    if ($submittedAnswer == $correctAnswers[$questionId]) {
        $score++;
    }
}

// Process the quiz results
// You can store the score in a database, display it to the user, or take any other action based on the score

Keywords

SQL injection cross-site scripting form validation session management CSRF protection

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