如何在表中使用modulo？

问题描述：

How to use modulo in PHP tables?

<table border="1">
<?php for ($i = 1; $i <= 20; $i++): ?>
    <?php if ($i % 5 == 0): ?>
        <tr>
    <?php endif ?>  
        <td><?php echo $i ?></td>
    <?php if ($i % 5 == 0): ?>
        </tr>
    <?php endif ?>  
<?php endfor ?>
</table>

This example show me:

1   2   3   4
5
6   7   8   9
10
11  12  13  14
15
16  17  18  19
20

I would like receive:

1   2   3   4   5
6   7   8   9   10
11  12  13  14  15
16  17  18  19  20

What I must use in if?

如何在PHP表中使用modulo？ p>

 ＆lt; table border =“1”＆gt; 
＆lt;？php for（$ i = 1; $ i＆lt; = 20; $ i ++）：？＆gt;  
＆lt;？php if（$ i％5 == 0）：？＆gt; 
＆lt; tr＆gt; 
＆lt;？php endif？＆gt;  
＆lt; td＆gt;＆lt;？php echo $ i？＆gt;＆lt; / td＆gt; 
＆lt;？php if（$ i％5 == 0）：？＆gt; 
＆lt; / tr＆gt; 
  ＆lt;？php endif？＆gt;  
＆lt;？php endfor？＆gt; 
＆lt; / table＆gt; 
  code>  pre> 
 
 此示例告诉我： p> 
 
 
  1 2 3 4 
5 
6 7 8 9 
10 
11 12 13 14 
15 
16 17 18 19 
20 
  code>  pre> 
 
 我想收到：   p> 
 
 
  1 2 3 4 5 
6 7 8 9 10 
11 12 13 14 15 
16 17 18 19 20 
  code>  pre> 
 \  n 我必须使用的是什么？   p> 
  div>

答

let's look at what you are doing: you start a row when $i is a multiple of five and you end a row when $i is a multiple of five. in any other case, you just print the number. so your row can only contain the value 5.

but: you want a row containing 1,2,3,4,5 - so you have to finish the row after 5, what you are doing, but start it before 1.

<table border="1">
<?php for ($i = 1; $i <= 20; $i++): ?>
    <?php if ($i % 5 == 1): ?>
        <tr>
    <?php endif ?>  
        <td><?php echo $i ?></td>
    <?php if ($i % 5 == 0): ?>
        </tr>
    <?php endif ?>  
<?php endfor ?>
</table>

如何在表中使用modulo？

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