Using WordPress ‘comment_atom_entry’ PHP action

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The comment_atom_entry WordPress PHP action fires at the end of each Atom comment feed item.

Usage

add_action('comment_atom_entry', 'your_custom_function', 10, 2);

function your_custom_function($comment_id, $comment_post_id) {
    // your custom code here

    return;
}

Parameters

  • $comment_id (int) – ID of the current comment.
  • $comment_post_id (int) – ID of the post the current comment is connected to.

More information

See WordPress Developer Resources: comment_atom_entry

Examples

Add a custom field to Atom comment feed

Add a custom field called “author_email” to each comment item in the Atom feed.

add_action('comment_atom_entry', 'add_author_email_to_atom_feed', 10, 2);

function add_author_email_to_atom_feed($comment_id, $comment_post_id) {
    $author_email = get_comment_author_email($comment_id);
    echo "<author_email>{$author_email}</author_email>";
}

Add comment rating to Atom comment feed

Add a comment rating to the Atom feed if the “rating” meta field is set for the comment.

add_action('comment_atom_entry', 'add_comment_rating_to_atom_feed', 10, 2);

function add_comment_rating_to_atom_feed($comment_id, $comment_post_id) {
    $rating = get_comment_meta($comment_id, 'rating', true);
    if ($rating) {
        echo "<rating>{$rating}</rating>";
    }
}

Add a custom namespace to Atom comment feed

Add a custom namespace to the Atom feed for each comment.

add_action('comment_atom_entry', 'add_custom_namespace_to_atom_feed', 10, 2);

function add_custom_namespace_to_atom_feed($comment_id, $comment_post_id) {
    echo 'xmlns:custom="http://example.com/custom-namespace"';
}

Add comment author website to Atom comment feed

Add the comment author’s website URL to the Atom feed.

add_action('comment_atom_entry', 'add_comment_author_website_to_atom_feed', 10, 2);

function add_comment_author_website_to_atom_feed($comment_id, $comment_post_id) {
    $author_website = get_comment_author_url($comment_id);
    if ($author_website) {
        echo "<author_website>{$author_website}</author_website>";
    }
}

Add a custom footer to each Atom comment feed item.

add_action('comment_atom_entry', 'add_custom_footer_to_atom_feed', 10, 2);

function add_custom_footer_to_atom_feed($comment_id, $comment_post_id) {
    echo "<footer>Powered by MyPlugin</footer>";
}