на 4 итерации цикла, засунуть оставшиеся опции в dropdown

[sitebuilding11]

на 4 итерации цикла, засунуть оставшиеся опции в dropdown

Как это сделать в моем коде?

Можете помочь?

<div class="filters">
 <div class="row">
    <?php foreach ($filter_groups as $filter_group) { ?>
	
    <div class="opn col-sm-6" id="filter-group<?php echo $filter_group['filter_group_id']; ?>">

	<a><?php echo $filter_group['name']; ?></a>


	  
	  		<ul class="nav navmenu" >
        <div class="p-t" >
		 
	
        <?php foreach ($filter_group['filter'] as $filter) { ?>
		
<li class="filt_<?php echo $filter['filter_id']; ?> item" >
		<?php if (in_array($filter['filter_id'], $filter_category)) { ?>
	<input id="tag_<?php echo $filter['filter_id']; ?>" name="filter[]" value="<?php echo $filter['filter_id']; ?>" type="radio" data-checked="0" class="product-tags-j" checked="checked">
	<label for="tag_<?php echo $filter['filter_id']; ?>" class="custom-checkbox-label"> <span class="custom-checkbox-inner"></span><?php echo $filter['name']; ?></label>
            <?php } else { ?>
			<input id="tag_<?php echo $filter['filter_id']; ?>" name="filter[]" value="<?php echo $filter['filter_id']; ?>" type="radio" data-checked="0" class="product-tags-j" >
            <label for="tag_<?php echo $filter['filter_id']; ?>" class="custom-checkbox-label"> <span class="custom-checkbox-inner"></span><?php echo $filter['name']; ?></label>
            <?php } ?> 
</li>	


	
  <?php } ?>      
		
	

<li class="font-base dropdown">
		<a role="button" href="#" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false" class="p-0 border-n"> показать все <span class="caret"></span> </a>
		<ul class="dropdown-menu p-t-2">
          
  		</ul>
		</li>
		
		</div>

		</ul>
	
		 

	 </div>
	 
    <?php } ?>
	
	
  </div>
  
  <!--div class="poisk2">
    <button type="button" id="button-filter" class="btn btn-primary"><?php echo $button_filter; ?></button>
  </div-->
   </div>

<script type="text/javascript"><!--
$('input[name^=\'filter\']').on('click', function() {
	filter = [];

	$('input[name^=\'filter\']:checked').each(function(element) {
		filter.push(this.value);
	});

	location = '<?php echo $action; ?>&filter=' + filter.join(',');
});
//--></script>