<?php
include("db1.php");
include("session.php");
$mark = 0;
$integrity ='';
$stmt = $conn->prepare("INSERT INTO student(rollno, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, mark, time1) VALUES (:rollno, :a1, :a2, :a3, :a4, :a5, :a6, :a7, :a8, :a9, :a10, :mark, :time1)");
//$stmt = $conn->prepare("INSERT INTO student(rollno, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, mark) VALUES (:rollno, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, mark)");
//$stmt = $conn->prepare("INSERT INTO student(rollno, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, mark) VALUES (?,?,?,?,?,?,?,?,?,?,?i)");
$rollno = addslashes($_POST['rollno']);
$stmt->bindParam(':rollno', addslashes($_POST['rollno']));
for($i = 0; $i < 10; $i++) {
	$a[$i] =  addslashes($_POST[$i]);
	$q = "qid".$i;
	$qid[$i] = addslashes($_POST[$q]);
	$merge[$i] = $qid[$i]."-".$a[$i];
	$qidentity = $qid[$i];
	$sql = $conn->prepare("SELECT ans FROM question where qno = :id and ans = :ans");
	$sql->bindValue(':id',$qid[$i]);
	$sql->bindValue(':ans',$a[$i]);
	$sql->execute();
	$row = $sql->rowCount();
	if($row > 0) {
		$mark = $mark + 1;
	}
	$integrity = $integrity.$merge[$i];
	
}

date_default_timezone_set('Asia/Kolkata');
$time1 = date("h:i a"); 
for($i=0;$i<10;$i++) {
	$t = $i+1;
	$ans = ":a".$t;
	$stmt->bindParam($ans, $merge[$i]);
}
$stmt->bindParam(':mark', $mark);
$stmt->bindParam(':time1', $time1);

$hash = $rollno.$integrity;
$hash  = md5($hash);
$hash1 = $_SESSION['hash'];
if($hash == $hash1 && $p == 0) {
      echo ("<center> <b> It is a refresh </b> </center>");
      exit();
}
else if($p == 0) {
     $_SESSION['hash'] = $hash;
}
if($stmt->execute()) {
        echo "<b> <center> <font color = 'blue'> <br>Sucessfully Submitted </font>  </center> </b> <br> <br>";
	$sql = $conn->prepare("SELECT * FROM student where rollno = :rollno");
	$sql->bindValue(':rollno',$rollno);
	$sql->execute();
	$row = $sql->rowCount();
	$concat = "";
	if($row > 0) {
	        while ($row = $sql->fetch()) {
	                $rollno = $row['rollno'];
	                $marks = $row['mark'];
			//$time1 = $row['time1'];
	                for($i = 1; $i <= 10; $i++) {
				$a = 'a'.$i;
				$answer[$i] = $row[$a];
				$concat = $answer[$i]."<-->".$concat;
	        	}
		}
	?>
	<div align = "center">
	         <table> 
	                <tr  colspan = "3"> <td> <b> Your Submission Details</b>  </td> </tr>
	                <tr> <td> <br> Your Roll Number </td> <td>   <br> : </td>  <td> <br>  <?php echo $rollno; ?> </td> </tr> 
        	        <tr> <td> <br> Submitted Answers </td> <td>   <br> : </td>  <td> <br>  <?php echo $concat; ?> </td>  </tr>
        	        <tr> <td> <br> Number of Right Answers</td> <td>   <br> : </td>  <td> <br>  <?php echo $mark; ?> </td>  </tr>
	        </table>
	</div>
<?php
	}
	else {
		echo "Error in Submission";
	}
}
else {
		echo "<b> <center> <font color = 'blue'> <br>Already Submitted or Other issues </font>  </center> </b> <br> <br>";
}
?>