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quiz_result.php
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<?php
require_once('./config/config.php');
try {
$connection = new PDO("mysql:host=$database_host;dbname=$database_name", $database_user, $database_password);
$connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
die("Error: ".$e->getMessage());
}
$questionIDs = $_POST['question-ids'];
$questionIDsArray = explode(',' , $questionIDs);
$questionCount = $_POST['question-count'];
$userAnswers = array();
$correctAnswers = array();
for ($i = 1; $i <= $questionCount; $i++) {
if(isset($_POST['question-'. strtolower($i)])) {
array_push($userAnswers, $_POST['question-'.$i]);
} else {
array_push($userAnswers, 'no-select');
}
}
$query = "SELECT `question`.`title`, `question`.`option-a`, `question`.`option-b`, `question`.`option-c`, `question`.`option-d`, `question`.`correct` FROM `question` WHERE id IN($questionIDs) ORDER BY FIELD(id, $questionIDs);";
$queryResult = $connection->query($query);
$queryResultAssoc = $queryResult->fetchAll(PDO::FETCH_ASSOC);
for ($i = 0; $i < count($queryResultAssoc); $i++) {
array_push($correctAnswers, $queryResultAssoc[$i]["correct"]);
}
$numberOfCorrectAnswers = 0;
for($i = 0; $i < $questionCount; $i++) {
if(strtolower($userAnswers[$i]) == strtolower($correctAnswers[$i])) {
$numberOfCorrectAnswers++;
}
}
$obtainedResult = (($numberOfCorrectAnswers / $questionCount) * 100);
session_start();
if(isset($_SESSION['quiz-start-time'])) {
$startTime = $_SESSION["quiz-start-time"];
$endTime = time();
$takeTime = $endTime - $startTime;
$takeTimeMinutes = floor($takeTime / 60);
$takeTimeSeconds = $takeTime % 60;
$_SESSION['user-end-test'] = true;
$sqlQuery;
$stmt;
$key;
if(isset($_SESSION["user-id"])) {
$sqlQuery = 'INSERT INTO `quizmaster`.`solved`(`user_id`, `date`, `duration`, `questions_number`, `score`, `questions_ids`, `answers`, `type`) VALUES (:userid, NOW(), :time, :questionnumber, :score, :questionids, :answers, :type)';
$stmt = $connection->prepare($sqlQuery);
$stmt->bindParam(':userid', $_SESSION['user-id']);
} else {
$sqlQuery = 'INSERT INTO `quizmaster`.`temp_solved`(`key`, `date`, `duration`, `questions_number`, `score`, `questions_ids`, `answers`, `type`) VALUES (:key, NOW(), :time, :questionnumber, :score, :questionids, :answers, :type)';
$stmt = $connection->prepare($sqlQuery);
$key = substr(bin2hex(random_bytes(ceil(32/2))),0,32);
$stmt->bindParam(':key', $key);
}
$stmt->bindParam(':time', $takeTime);
$stmt->bindParam(':questionnumber', $questionCount);
$stmt->bindParam(':score', $obtainedResult);
$stmt->bindParam(':questionids', $questionIDs);
$stmt->bindParam(':answers', implode(',', $userAnswers));
$stmt->bindParam(':type', $_SESSION['type']);
$stmt->execute();
}
unset($_SESSION["quiz-start-time"]);
$connection = null;
?>
<!DOCTYPE html>
<html lang="pl">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>QuizMaster - Wyniki</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
<link rel="stylesheet" href="../styles/style_global.css">
<link rel="stylesheet" href="../styles/style_quiz_result.css">
<link rel="shortcut icon" href="../image/favicon.png" type="image/x-icon">
</head>
<body>
<section class="document">
<?php
require_once('./elements/header.php');
?>
<section class="document-body">
<section class="section-info">
<hr>
<h1>Ukończno Quiz! <span>Uzyskany wynik: <?php echo $obtainedResult . '% ('. $numberOfCorrectAnswers . '/' . $questionCount . ')' ?></span></h1>
<hr>
</section>
<section class="section-quiz">
<?php
$options = ['A', 'B', 'C', 'D'];
for($i = 0; $i < $questionCount; $i++) {
$j = $i + 1;
echo '<section class="question-box">';
echo '<span class="question-title"><h3><p>'. $j . '.</p>' . $queryResultAssoc[$i]['title'] .'</h3></span>';
if($userAnswers[$i] == 'no-select') {
echo '<p class="no-select-info">Nie udzielono odpowiedzi!</p>';
}
foreach($options as $option) {
if(strtolower(($userAnswers[$i]) == strtolower($correctAnswers[$i]))) {
if(strtolower($option) == strtolower($correctAnswers[$i])) {
echo '<span class="answer-box correct-answer"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
} else {
echo '<span class="answer-box"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
}
} else if (strtolower(($userAnswers[$i]) == 'no-select')) {
if(strtolower($option) == strtolower($correctAnswers[$i])) {
echo '<span class="answer-box correct-answer-none"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
} else {
echo '<span class="answer-box"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
}
} else {
if(strtolower($option) == strtolower($correctAnswers[$i])) {
echo '<span class="answer-box correct-answer"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
} else if (strtolower($option) == strtolower($userAnswers[$i])) {
echo '<span class="answer-box incorrect-answer"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
} else {
echo '<span class="answer-box"><p class="letter">'.$option.'.</p>'. $queryResultAssoc[$i]['option-'. strtolower($option)] .'</span>';
}
}
}
echo '</section>';
}
?>
</section>
<?php
if(!isset($_SESSION['user-id'])) {
echo <<<KEY
<button id="key-info">
<p><i id="arrow" class="fa-solid fa-caret-right"></i> Klucz dostępu</p>
</button>
<div id="key-wrapper">
<div id="div-key"><p>{$key}</p></div>
</div>
KEY;
}
?>
</section>
<?php
require_once('./elements/footer.html');
?>
</section>
<script src="../scripts/quiz_result.js"></script>
</body>
</html>