将div添加到foreach循环？

问题描述

|

<?PHP foreach ($fields as $id => $field): ?>
<div class=\"<?PHP print $field->class; ?>\">
 <?PHP print $field->content; ?>
 </div>
<?PHP endforeach; ?>

循环的结果如下：

   <div class=\"1\">.....</div>
   <div class=\"2\">.....</div>
   <div class=\"3\">.....</div>
   <div class=\"4\">.....</div>


   <div class=\"1\">.....</div>
   <div class=\"2\">.....</div>
   <div class=\"3\">.....</div>
   <div class=\"4\">.....</div>

   <div class=\"1\">.....</div>
   <div class=\"2\">.....</div>
   <div class=\"3\">.....</div>
   <div class=\"4\">.....</div>

我想像这样将第一个

<div>

分组。

    <div class=\"group\">
   <div class=\"1\">.....</div>
   <div class=\"2\">.....</div>
   <div class=\"3\">.....</div>
   </div>
  <div class=\"4\">.....</div>

如何使foreach     

解决方法

如果

$field->class

变量始终在1到4之间，则可以执行以下操作。否则，您需要使用手动计数器。

<?php foreach ($fields as $id => $field): ?>
    <?php if ($field->class == 1) :?> <div class=\"group\"> <?php endif; ?>
    <div class=\"<?php print $field->class; ?>\">
      <?php print $field->content; ?>
    </div>
    <?php if ($field->class == 4) :?> </div> <?php endif; ?>
<?php endforeach; ?>

定制柜台

<?php $counter = 0; ?>
<?php foreach ($fields as $id => $field): $counter++;?>
    <?php if ($counter == 1) :?> <div class=\"group\"> <?php endif; ?>
    <div class=\"<?php print $field->class; ?>\">
      <?php print $field->content; ?>
    </div>
    <?php if ($counter == 4) : $counter = 1?> 
        </div> 
    <?php endif; ?>
<?php endforeach; ?>

    ,应该相似，只是用

foreach

代替

for

<style>
    .group{
        background: red;
        margin-top: 10px;
        float: left;
        }
</style>
<?php $count=0; ?>
    <?php for($i=0; $i<= 20; $i++): ?>
    <?php if($count == 0): ?>
        <div class=\"group\">
    <?php endif; ?>
        <?php $count++ ?>
        <div class=\"<?php echo $i; ?>\"><?php echo $i; ?></div>
    <?php if($count == 4): ?>
        <?php $count=0; ?>
        </div>
    <?php endif; ?>
<?php endfor; ?>

    ,试试（原始代码）

<div class=\"group\">
<?php $c=0; foreach ($fields as $id => $field) : ?>
<?php if($c%3==0) : ?> </div><div class=\"group\"><?php endif; ?>
        <div class=\"<?php print $field->class; ?>\">
           <?php print $field->content; ?>
       </div>
<?php $c++; endforeach; ?>
</div>