Display Tag Cloud in WordPress Templates

Although we see less and less use of tag clouds on WordPress sites, here is how to add one using code in WordPress templates. This is the same tag cloud that appears in the widgets area of the WordPress admin.

Add the following code where you want in your template and change the parameters as needed:

<?php wp_tag_cloud(array(
     'smallest' => 10, // size of least used tag
     'largest' => 18, // size of most used tag
     'unit' => 'px', // unit for sizing
     'orderby' => 'name', // alphabetical
     'order' => 'ASC', // starting at A
     'exclude' => 6 // ID of tag to exclude from list
     ));
?>

For more on tags and taxonomies, see Taxonomies in WordPress.