adjacent_posts_rel_link example

function adjacent_posts_rel_link_wp_head() {
    if ( ! is_single() || is_attachment() ) {
        return;
    }
    adjacent_posts_rel_link();
}

/** * Displays the relational link for the next post adjacent to the current post. * * @since 2.8.0 * * @see get_adjacent_post_rel_link() * * @param string $title Optional. Link title format. Default '%title'. * @param bool $in_same_term Optional. Whether link should be in the same taxonomy term. * Default false. * @param int[]|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs. * Default empty. * @param string $taxonomy Optional. Taxonomy, if `$in_same_term` is true. Default 'category'. */