如何在PHP代码中使用<td>里面的div标签

I want to know how should we use div tags inside a table in PHP code. This is my code. Please tell me how to use it properly.

<tbody>
    <?php
    $result = mysqli_query($conn,$sql);
    while($row = mysqli_fetch_array($result,MYSQLI_BOTH)) {  

        echo "<tr>

        <td>{$row['id']}</td>
        <td><img  width='90px' height='90px' src='imageView.php?id=".$row["id"]."' /> </td>
        <td>{$row['item_name']}</td>
        <td>{$row['description']}</td>
        <td>{$row['quantity']}</td>
        <td>echo '<div class="col-md-1 col-sm-3 col-xs-6 c-cart-qty">

            <div class="c-input-group c-spinner">
                <input type="text" class="form-control c-item-1" value="1">
                <div class="c-input-group-btn-vertical">
                    <button class="btn btn-default" type="button" data_input="c-item-1">
                        <i class="fa fa-caret-up"></i>
                    </button>
                    <button class="btn btn-default" type="button" data_input="c-item-1">
                        <i class="fa fa-caret-down"></i>
                    </button>
                </div>
            </div>
        </div> 
        </td>';                                                 
        <td> <button>submit</button>  </td>

        </tr>";


    }?>
</tbody>

I have tried using inverted comma's and braces but still, it shows error. What needs to be done here?

You can write the div inside table. Don't put all table inside php tag. remove html outside the <?php ?> php code. after that whenever you want to echo any value just used the php.

Customize your code like below,

<table>
    <tbody>
        <?php
        $result = mysqli_query($conn, $sql);
        while ($row = mysqli_fetch_array($result, MYSQLI_BOTH)) {
            ?>
            <tr>
                <td><?php echo $row['id']; ?></td>
                <td><img  width='90px' height='90px' src='imageView.php?id=<?php echo $row["id"]; ?>' /> </td>
                <td><?php echo $row['item_name']; ?></td>
                <td><?php echo $row['description']; ?></td>
                <td><?php echo $row['quantity']; ?></td>
                <td>
                    <div class="col-md-1 col-sm-3 col-xs-6 c-cart-qty">

                        <div class="c-input-group c-spinner">
                            <input type="text" class="form-control c-item-1" value="1">
                            <div class="c-input-group-btn-vertical">
                                <button class="btn btn-default" type="button" data_input="c-item-1">
                                    <i class="fa fa-caret-up"></i>
                                </button>
                                <button class="btn btn-default" type="button" data_input="c-item-1">
                                    <i class="fa fa-caret-down"></i>
                                </button>
                            </div>
                        </div>
                    </div> 
                </td>                                             
                <td> <button>submit</button>  </td>
            </tr>
        <?php } ?>
    </tbody>
</table>

Within a double quote you can use a single quote

<tbody>
                                         <?php
                                          $result = mysqli_query($conn,$sql);
                                               while($row = mysqli_fetch_array($result,MYSQLI_BOTH)) {  

                                            echo "<tr>
                                               
                                                <td>{$row['id']}</td>
                                                <td><img  width='90px' height='90px' src='imageView.php?id=".$row["id"]."' /> </td>
                                                <td>{$row['item_name']}</td>
                                                 <td>{$row['description']}</td>
                                                <td>{$row['quantity']}</td>
                                                 <td><div class='col-md-1 col-sm-3 col-xs-6 c-cart-qty'>
                                                      
                                                        <div class='c-input-group c-spinner'>
                                                         <input type='text' class='form-control c-item-1' value='1'>
                                                           <div class='c-input-group-btn-vertical'>
                                                             <button class='btn btn-default' type='button' data_input='c-item-1'>
                                                               <i class='fa fa-caret-up'></i>
                                                              </button>
                                                             <button class='btn btn-default' type='button' data_input='c-item-1'>
                                                                <i class='fa fa-caret-down'></i>
                                                              </button>
                                                            </div>
                                                       </div>
                                                     </div> 
                                                 </td>;                                                 
                                                <td> <button>submit</button>  </td>
                                
                                              </tr>";
                                           
                                           
                                            }?>
                                        </tbody>

</div>