javascript - 没有数据时如何重新设计表格

Question

我有一个表格，其中显示了数据库中的一些数据。我想要一些 <td> 中是否没有数据，下一行的列，显示在它的位置。这就是我的意思:如果我有这种表:

当没有数据时，例如 $data['created_at'] , 应该显示 $data['due_date']在它的地方。我怎么能那样做？

<table>
  <tr>
    <td colspan="3">
    <?php if(!empty($data['created_at'])){ ?>
       <strong><?php echo "Created Date:";?>:</strong> <?php echo $data['created_at']; ?>
    <?php } ?>
   </td>
    
    <td colspan="3">
    <?php if(!empty($data['username'])){ ?>
       <strong><?php echo "Username:";?>:</strong> <?php echo $data['username']; ?>
    <?php } ?>
   </td>
  </tr>
  
    <tr>
    <td colspan="3">
    <?php if(!empty($data['due_date'])){ ?>
       <strong><?php echo "Date delivery:";?>:</strong> <?php echo $data['due_date']; ?>
    <?php } ?>
   </td>
    
    <td colspan="3">
    <?php if(!empty($data['copmany'])){ ?>
       <strong><?php echo "Company:";?>:</strong> <?php echo $data['copmany']; ?>
    <?php } ?>
   </td>
  </tr>
  
  </table>
 

Answer 1

如果结果为空，您是否只想省略一行？只需更改 if 语句的位置以包含 td

<table>
  <tr>
    <?php if(!empty($data['created_at'])){ ?>
    <td colspan="3">
       <strong><?php echo "Created Date:";?>:</strong> <?php echo $data['created_at']; ?>    
   </td>
    <?php } ?>
    
    
    <?php if(!empty($data['username'])){ ?>
    <td colspan="3">
       <strong><?php echo "Username:";?>:</strong> <?php echo $data['username']; ?>
         </td>
    <?php } ?>

  </tr>
  
    <tr>
 
    <?php if(!empty($data['due_date'])){ ?>
         <td colspan="3">
       <strong><?php echo "Date delivery:";?>:</strong> <?php echo $data['due_date']; ?>
     </td>
           <?php } ?>

    
    
    <?php if(!empty($data['copmany'])){ ?>
      <td colspan="3">
       <strong><?php echo "Company:";?>:</strong> <?php echo $data['copmany']; ?>
    </td>
        <?php } ?>
   
  </tr>
  
  </table>