Are there best practices for providing feedback on user answers in a PHP quiz or puzzle, including displaying correct solutions?

When providing feedback on user answers in a PHP quiz or puzzle, it is important to clearly indicate whether the answer was correct or incorrect. Additionally, displaying the correct solution can help users learn from their mistakes and improve their understanding. One approach is to compare the user's answer with the correct answer and provide feedback based on the comparison. 

// Assuming $userAnswer and $correctAnswer are variables containing the user's answer and the correct answer respectively

if ($userAnswer == $correctAnswer) {
    echo "Your answer is correct!";
} else {
    echo "Your answer is incorrect. The correct answer is: " . $correctAnswer;
}

Keywords

validation feedback user input correct answer error handling

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