<!DOCTYPE html>
<?php 
session_start();
require 'php/DBConnection.php';
require 'php/phpGeneral.php';
if (!isset($_SESSION["currentUser"])) {
    header("Location: .");
}
?>

<?php 
$userInfo = $email = $name = $institution = $photo = "";
if (isset($_SESSION["currentUser"])) {
    $email = $_SESSION["currentUser"];
    $userInfo = selectUserInfo($email);
    $_SESSION["name"] = $userInfo["name"];
    $_SESSION["institution"] = $userInfo["institution"];
    $_SESSION["password"] = $userInfo["password"];
}
if (isset($_SESSION["name"])) {
    $name = $_SESSION["name"];
}
if (isset($_SESSION["institution"])) {
    $institution = $_SESSION["institution"];
}
if (isset($_SESSION["password"])) {
    $password = $_SESSION["password"];
}
if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST["changePassword"])) {
    $_SESSION["name"] = $_POST["name"];
    $_SESSION["institution"] = $_POST["institution"];
            echo "successful";
        } else {
            echo "Wrong Password";
        }
    } else {
        echo "Wrong User Name";
    }
}
if (isset($_POST["signup"])) {
    $inputEmail = $_POST["inputEmail"];
    $name = $_POST["name"];
    $inputPassword = $_POST["inputPassword"];
    $retypePassword = $_POST["retypePassword"];
    $institutionName = $_POST["institutionName"];
    $photo = "";
    if (selectUserInfo($inputEmail) != null) {
        echo "This email already used for another account !";
    } else {
        insertUserInfo($inputEmail, $inputPassword, $name, $institutionName, $photo);
        $_SESSION["currentUser"] = $_POST["inputEmail"];
        echo "successful";
    }
}
if (isset($_POST["saveTheExam"])) {
    $examName = $_POST["examName"];
    $startDateTime = $duration = "";
    if (isset($_POST["year"])) {
        $d = $_POST["year"] . "-" . $_POST["month"] . "-" . $_POST["day"] . " " . $_POST["hour"] . ":" . $_POST["minute"];
        $startDateTime = date("Y-m-d H:i:s", strtotime($d));
        //echo $startDateTime;
    }
<?php

$examId = $_GET["examId"];
$examDetail = selectExamInfo($examId);
$questionSet = selectAllQuestionOf($examId);
echo '<div id="examTitle">
			<h3>' . $examDetail["examName"] . '</h3>';
$examinerInfo = selectUserInfo($examDetail["examinerId"]);
echo '<h4>
			<span>Exam Id : <span id="examId">' . $examId . '</span> , </span>
			<span><u>Exam By : ' . $examinerInfo["name"] . '</u></span>
			</h4>
			<h5>(Tick The Correct Answers, Your answer will save automatically)</h5>
			</div>';
echo '<br>';
$start = 0;
$end = count($questionSet);
for ($index = $start; $index < $end; $index++) {
    $order = $index + 1;
    $question = selectQuestionDetail($questionSet[$index]["questionId"]);
    echo '<div class="question">' . $order . ') ' . htmlspecialchars($question["question"], ENT_QUOTES, ini_get("default_charset")) . '</div>';
    echo '<br>';
    $options = selectAllOptionsOf($questionSet[$index]["questionId"]);
    foreach ($options as $op) {
        if (isSelected($_SESSION["currentUser"], $examId, $question["questionId"], htmlspecialchars($op["mcqOption"], ENT_QUOTES, ini_get("default_charset")))) {
            echo '<label class="mcqOptions"><input type="checkbox" class="clickOptions" onchange="submitAnswer()" name="' . $question["questionId"] . '" value="' . htmlspecialchars($op["mcqOption"], ENT_QUOTES, ini_get("default_charset")) . '" checked> ' . htmlspecialchars($op["mcqOption"], ENT_QUOTES, ini_get("default_charset")) . '</label>';
        } else {
            echo '<label class="mcqOptions"><input type="checkbox" class="clickOptions" onchange="submitAnswer()" name="' . $question["questionId"] . '" value="' . htmlspecialchars($op["mcqOption"], ENT_QUOTES, ini_get("default_charset")) . '"> ' . htmlspecialchars($op["mcqOption"], ENT_QUOTES, ini_get("default_charset")) . '</label>';
        }
        echo '<br>';
    }
    <br>

			<div id="allResult">

        <table id ="examList" class="table table-hover table-responsive">
          <tr>
            <th>Examinee Name</th>
            <th>Institution Id</th>
            <th>Acquired Mark</th>
            <th>Option 1</th>
          </tr>
        <?php 
$examineeList = selectAllExamineeOf($_GET["examId"]);
if ($examineeList) {
    foreach ($examineeList as $examinee) {
        $examineeInfo = selectUserInfo($examinee["examineeId"]);
        ?>
          <tr>
          <td><?php 
        echo $examineeInfo["name"];
        ?>
</td>
          <td><?php 
        echo $examinee["institutionId"];
        ?>
</td>
          <td><?php 
        echo getAcquiredMarks($_GET["examId"], $examinee["examineeId"]);
        ?>
</td>
          <td><a href="#">Detail</a></td>