I have several custom post types that all share the same tags.

On the archive for each custom post type I want to display a list of tags used, and the number of posts associated with each. get_tags() by default pulls all its information from the entire site content.

I can't find any filters for the get_tags() function, and I don't want to perform and intensive queries/functions to manually count and restrict.

  • Looking at the source code, there's a filter called, appropriately, get_tags. Unfortunately, the docs are a little thin. Hopefully this can get you started, though.
    – Pat J
    Commented Jan 29, 2014 at 21:48

1 Answer 1


It should work:

global $wpdb;

// set the target relationship here
$post_type = 'post';
$taxonomy = 'tag';

$terms_ids = $wpdb->get_col( $wpdb->prepare( "
    {$wpdb->term_relationships} tr,
    {$wpdb->term_taxonomy} tt,
    {$wpdb->posts} p
    AND tr.object_id = p.id
    AND p.post_type = '%s'
    AND p.post_status = 'publish'
    AND tr.term_taxonomy_id = tt.term_taxonomy_id
    AND tt.taxonomy ='%s'
", $post_type, $taxonomy ) );

// here you are
$terms = get_terms( $taxonomy, array(
'include' => $terms_ids,
'orderby' => 'name',
'order' => 'ASC'
) );

It will get your tag terms for a specific custom post type. Then you can do:

foreach( $terms as $tag ) {
    echo '<li class="type-tag">' . $tag->name . '</li>'; 

to show your tags on a list.

  • If you add some information to this answer explaining what it does, and why it solves the problem, you'll get an upvote from me. Code alone does not make for a valuable answer...
    – t31os
    Commented Jan 30, 2014 at 8:38
  • @t31os - Done it.
    – Manolo
    Commented Jan 30, 2014 at 9:07
  • Sorry but unfortunately that does not clarify the answer sufficiently enough for me. For example: Why are you calling WPDB's get_col and is it required and if so, why...
    – t31os
    Commented Feb 3, 2014 at 19:26

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