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I'm building a site glossary and trying to display only tags with descriptions. Is there a way to determine if the description is available and only display the tag when it is?

Here is where I am so far.

    $tags = get_tags();
    if (tag_description($tag->term_id)) {
        if ($tags) {
            foreach ($tags as $tag) {
                echo '<dt><a href="' . get_tag_link( $tag->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $tag->name ) . '" ' . '>' . $tag->name.'</a></dt><dd>' . tag_description($tag->term_id) . '</dd>';
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up vote 4 down vote accepted

The object returned by get_tags() should have a description property, so you don't need to try to get it again. Just check to be sure $tags->description isn't empty. You should probably also reorganize so that you don't do anything at all unless if($tags). Thus:

// Get ALL the tags!
$tags = get_tags( array( 'hide_empty' => false ) );
if ($tags) {
  foreach ($tags as $tag) {
    if ($tag->description) {
      echo '<dt><a href="' . get_tag_link( $tag->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $tag->name ) . '" ' . '>' . $tag->name.'</a></dt><dd>' . $tag->description . '</dd>';
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Worked flawlessly, Thanks Helen. – Zach Shallbetter Aug 30 '11 at 20:11
It's odd I'm finding that it's not updating the list when I add more. Does it only show tag that are attached to posts? If so, how would I display all tags? – Zach Shallbetter Aug 31 '11 at 17:14
Ah yeah, get_tags() excludes empty ones by default. I've updated my answer to get all of them. Untested, though :) – helenhousandi Aug 31 '11 at 20:45
Looks like it's still only getting tags that are connected to posts. Also, how would you sort them by name instead of number of contained posts? – Zach Shallbetter Aug 31 '11 at 22:04
get_tags() is supposed to return tags alphabetically: codex.wordpress.org/Function_Reference/get_tags . Do you have a plugin or code that could be interfering? The above really should work. – helenhousandi Aug 31 '11 at 22:19

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