保存测验中选择的选项并检查

Question

我在同一页面上生成了一个带有问题的测验。我想将答案保存到数据库中以查看答案。我该怎么办？以下是我如何生成测验的代码。如何存储所选答案并进行检查？

    <?php   for($i=1;$i<=3;$i++)//loop for extracting question and options
                {?>
    <form action = "CHECK.php" method="POST">
<?PHP   
$sql = "SELECT QUESTION FROM T_QUESTIONS WHERE QUES_NO=$i LIMIT 1";
if($result = mysqli_query($conn, $sql)){
    if(mysqli_num_rows($result) > 0){
        echo "<table>";
            echo "<tr>";
                echo "<th>QUESTION  $i :</th>";
                 echo "</tr>";


                  while($row = mysqli_fetch_array($result)){
            echo "<tr>";
                echo "<td>" . $row['QUESTION'] . "</td>";
            echo "</tr>";

          }
                   echo "</table>";
                   mysqli_free_result($result);

    } else{
        echo "No records matching your query were found.";
    }
} else{
    echo "ERROR: Could not able to execute $sql. " . mysqli_error($conn);
}

 ?>
    <?PHP   
        $s = "select OPTION1,OPTION2,OPTION3,OPTION4,OPTION5,CORRECT_ANSWER from T_QUESTIONS where QUES_NO='$i'";
            $result=mysqli_query($conn,$s);
            if(!mysqli_query($conn,$s))
                echo mysqli_error($conn);
            else
                    while ($row = $result->fetch_assoc()) {

                        ?>


                        <input type="radio" name="choice<?php echo $i; ?>" value="<?php echo $row['OPTION1']; ?>" /> A. <?php echo $row['OPTION1']."<br>"; ?>
                        <input type="radio" name="choice<?php echo $i; ?>" value="<?php echo $row['OPTION2']; ?>" /> B. <?php echo $row['OPTION2']."<br>"; ?>
                        <input type="radio" name="choice<?php echo $i; ?>" value="<?php echo $row['OPTION3']; ?>" /> C. <?php echo $row['OPTION3']."<br>"; ?>
                        <input type="radio" name="choice<?php echo $i; ?>" value="<?php echo $row['OPTION4']; ?>" /> D. <?php echo $row['OPTION4']."<br>"; ?>
                        <input type="radio" name="choice<?php echo $i; ?>" value="<?php echo $row['OPTION5']; ?>" /> E. <?php echo $row['OPTION5']."<br>"; ?>
                        <br>

        <?php  
        }       
        }
        ?>
        </form>

<button style ="color:red;border radius:10px;margin:100px;height:100px;width:200px;font-size:30px"> <a href=CHECK.php>SUBMIT TEST</a></button>

Correct_OPTION与问题和选项位于同一表中。