$custom_css\r\n"; } } add_action('wp_head', 'ABT\DOM\inject_user_css'); function inject_author_meta() { global $post; if (!$post || !is_singular()) { return; } if (function_exists('get_coauthors')) { $authors = get_coauthors($post->ID); foreach ($authors as $author) { $id = $author->data->ID; $meta = get_user_meta($id); ?> post_author); ?>