..

<table class="table table-hover table-bordered table-striped">
                  <thead>
                    <tr>
                      <th>#</th>
                      <th>First Name</th>
                      <th>Last Name</th>
                      <th>Username</th>
                      <th>Option</th>
                    </tr>
                  </thead>
                  <tbody>

                    <?php

                    $store_id = $_SESSION['username'];
                    $result = mysqli_query($con,"SELECT * FROM orders;");
                    while($row = mysqli_fetch_array($result))
                    {

                    $id = $row['id'];
                    $username = $row['username'];
                    $phone = $row['phone'];
                    $order_status = $row['order_status'];

                      echo"<tr>";
                      echo"<td>$id</td>";
                      echo"<td>$username</td>";
                      echo"<td>$phone</td>";
                      echo"<td>$order_status</td>";
                      echo"<td><a class='btn btn-warning btn-sm' data-toggle='modal' data-target='#DetailModal_$id'</a></td>";
                      echo"</tr>";


                  }

                  ?>




                  </tbody>
                </table>


                <?php


                echo"<div class='modal' tabindex='-1' id='DetailModal_$id' role='dialog'>";
                echo"<div class='modal-dialog' role='document'>";
                echo"<div class='modal-content'>";
                echo"<div class='modal-header'>";
                echo"<h5 class='modal-title'>Modal title $id</h5>";
                echo"<button type='button' class='close' data-dismiss='modal' aria-label='Close'>"
                ."<span aria-hidden='true'>&times;</span>"
                ."</button>";
                echo"</div>";
                echo"<div class='modal-body'>";
                echo"<p>Modal body text goes here.</p>";

                echo"<table class='table'>";
                  echo"<thead>";
                    echo"<tr>";
                      echo"<th>#</th>";
                      echo"<th>First Name</th>";
                      echo"<th>Last Name</th>";
                      echo"<th>Username</th>";
                    echo"</tr>";
                  echo"</thead>";
                  echo"<tbody>";
                    echo"<tr>";
                      echo"<td>1</td>";
                      echo"<td>Steve</td>";
                      echo"<td>Jobs</td>";
                      echo"<td>@steve</td>";
                    echo"</tr>";
                  echo"</tbody>";
                echo"</table>";

                echo"</div>";
                echo"<div class='modal-footer'>";
                echo"<button type='button' class='btn btn-primary'>Save changes</button>";
                echo"<button type='button' class='btn btn-secondary' data-dismiss='modal'>Close</button>";
                echo"</div>";
                echo"</div>";
                echo"</div>";
                echo"</div>";

                 ?>