从sql中获取价值，第一个获取价值是dos未获取链接点击ID，如何解决？

Question

我从sql中获取一个值，然后获取需要在链接点击中发送这些值的值，但是我有一个问题，第一个值没有获取链接点击ID。

我该如何解决？

<div>
    <?php
    $result2 = mysqli_query($con,
        "SELECT * 
         FROM course 
         WHERE courseFaculty='$clickFaculty' 
           and courseYear='$clickYear' 
           and courseSemi=1 
           and courseStatus='Active'order by courseID asc ");

    if ($result2 === false) {
        die(mysqli_error());
    }
    while ($res2 = mysqli_fetch_array($result2)) {
        ?>
        <table class="table" style="margin: unset; padding: unset">
            <tbody>
            <tr>
                <td colspan="2">
                    <button type="submit" name="subject" value="<?php echo $res2['courseID']; ?>" class="btn btn-link "
                            style="margin: unset; padding: unset"><?php echo $res2['courseID']; ?>
                        - <?php echo $res2['courseName']; ?></button>
                </td>
                <th>
                    <a href="#CourseID<?php echo $res2['courseID']; ?>" class="float-right " title="Key"
                       data-toggle="modal"><span class="fa fa-key" "></span></a>
                </th>
            </tr>
            </tbody>
        </table>
        <!-- delete course -->
        <div id="CourseID<?php echo $res2['courseID']; ?>" class="modal fade" role="dialog" aria-hidden="true">
            <div class="modal-dialog" role="document">
                <form action="course.php?CourseID=<?php echo $res2['courseID']; ?>" method="post">
                    <div class="modal-content">
                        <div class="modal-header">
                            <h5 class="modal-title" id="exampleModalLabel">Enrolment key for <span
                                        style="font-weight: bold"> "<?php echo $res2['courseName']; ?> "</h5>
                            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                <span aria-hidden="true">&times;</span>
                            </button>
                        </div>
                        <div class="modal-body">

                            <div class="form-group">
                                <input type="text" name="courseKey" class="form-control" placeholder="Enter here">
                            </div> <!-- form-group end.// -->

                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancle</button>
                            <button type="submit" name="btnKey" class="btn btn-primary"> Submit</button>
                        </div>
                    </div>
                </form>
            </div>
        </div>
        <!-- end Modal -->
        <?php
    }
    ?>
    <div>