I want to make a filter based on category name for a list of items in joomla k2. I'm able to get category name from all the items, but there are items from the same category, so i get duplicated category name. Here my code
<div class="btn-toolbar filters">
<?php
$numofitems = count($items);
if($numofitems)
{
foreach ($items as $key=>$item)
{
?>
<div data-toggle="buttons" class="btn-group">
<label class="btn btn-default">
<input type="checkbox" value="<?php echo $item->categoryalias; ?>" >
<?php echo $item->categoryname; ?>
</label>
</div>
<?php } ?>
<div class="clr"></div>
<?php } ?>
</div>
I think i need an array and then get unique values from this array, but i really suck with php. Here demo link Demo