total_items
returns the total number of tags in the archive. Only tags that are visible to the current user will be included in the total, so visitors will only see the count of tags for public items.
Usage
<?php echo total_tags(); ?>
Examples
If you had 100 public tags in your archive, you could use this code in your theme's index.php
file:
<p>My Omeka Site has <?php echo total_tags(); ?> tags.</p>
To generate this:
<p>My Omeka Site has 1200 tags.</p>