<?php $this->widget('Widget_Metas_Category_List')->to($category); ?>
     <?php while($category->next()): ?>
     <li<?php if($this->is('category', $category->slug)): ?> class="current"<?php endif; ?>><a href="<?php $category->permalink(); ?>"><?php $category->name(); ?></a></li>
<?php endwhile; ?>

将上述代码加在header.php