插入一个空白行后的行的预定数量在PHP

Question

这就是我想要的，一组后说，在表3个中i行插入空行 这里是我创建的表和用数据填充代码

$row_count =0; 
    while($data = $result->fetch_assoc()){ 

     $row_count++; 

      $tbl .=' <tr>         

         <td>' .'&nbsp;' .$data['houseNumber'].'</td> 
         <td>' .'&nbsp;'.$data['tenantName'].'</td> 
         <td>' .'&nbsp;'.$data['status'].'</td>      
         <td>' .'&nbsp;'.$data['rentDue'].'</td>      
         <td>' .'&nbsp;'.$data['rentPaid'].'</td> 
         <td></td> 
         <td></td> 
         <td></td> 
         <td>'.'&nbsp;' .($data['rentPaid']).'</td> 


        </tr> ';  

       }//end while 

我如何使用这个$row_count变量来做到这一点。 在此先感谢

Answer 1

你可以试试：

$row_count =0; 
while($data = $result->fetch_assoc()) { 
    $row_count++; 
    $tbl .=' <tr>         
     <td>' .'&nbsp;' .$data['houseNumber'].'</td> 
     <td>' .'&nbsp;'.$data['tenantName'].'</td> 
     <td>' .'&nbsp;'.$data['status'].'</td>      
     <td>' .'&nbsp;'.$data['rentDue'].'</td>      
     <td>' .'&nbsp;'.$data['rentPaid'].'</td> 
     <td></td> 
     <td></td> 
     <td></td> 
     <td>'.'&nbsp;' .($data['rentPaid']).'</td> 
    </tr> ';  

    if ($row_count % 3 == 0) { 
     //if is divisible for 3, put the blanck row 
     $tbl .=' <tr>         
      <td colspan="9">&nbsp;</td> 
     </tr> ';   
    } 
} 
//end while