将div添加到foreach循环中？

Question

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

the loop's result is as the following,

   <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>

i want to group the first <div> like this.

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

how to make the foreach

Answer 1

If your $field->class variable always ranges from 1 to 4, you can do the following. Otherwise you need to use a manual counter.

<?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; ?>

Custom Counter

<?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; ?>