I'm in the process of building my own Wordpress theme from scratch and my knowledge of PHP is limited. What I'm trying to do is insert tags below each post. I can do this by inserting code into my single.php file but I want to do this through the functions.php file.

I have already inserted an author box below each post through the functions.php file. I got the code for that somewhere online and I would like to do the same thing with the tags.

Here is the author box code in my functions.php file.

function get_author_bio($content='') {
    global $post;
    $html="<div class='author-box'>\n";
    $html.="<h5 class='author'>About the author</h5>\n";
    $html.="<div class='author-entry'>\n";
    $html.="<img width='100' height='100' class='avatar' src='http://www.gravatar.com/avatar.php?gravatar_id=".md5(get_the_author_email()). "&default=".urlencode

($GLOBALS['defaultgravatar'])."&size=80&r=PG' alt='PG'/>\n";
    $html.="<h6 class='author-name'>".$post_author_name."</h6>\n";
    $html.= "<p>".$post_author_description."</p>\n";
    $content .= $html;
    return $content;
add_filter('the_content', 'get_author_bio');

It works great and it allows me to add HTML elements for easy CSS styling. I want something similar for the tags. Cab anyone help me?

  • You already worked out the basics. What exactly is giving you trouble with tags?
    – s_ha_dum
    May 18, 2014 at 20:59
  • The problem is that I do not know how to insert tags via the functions.php file. May 18, 2014 at 21:01
  • Well, yes, but that isn't much detail. Have you tried the Codex?
    – s_ha_dum
    May 18, 2014 at 21:04
  • I have tried the codex but it's confusing. What I'm trying to do is insert tags below each of the posts. I can do it by inserting <?php the_tags(); ?> into the single.php file but I need to have it in the functions.php file. May 18, 2014 at 21:09
  • I have written a simple case answer for you. See below.
    – s_ha_dum
    May 18, 2014 at 21:18

1 Answer 1


If all you want to do is add tags to the post body without writing them into the theme templates, all you really need to do is:

  function($content) {
    return $content.get_the_tag_list();

See get_the_tag_list() for arguments. That, by the way, is basically what the the_tags() function does.

However, there are other ways to do it and those ways may be better depending upon you exact requirements. As written, your question is pretty light on detail.

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