* * @param $permalink * @param $id * @return string */ public static function single_page_permalink($permalink, $id) { if ($parent_id = wp_get_post_parent_id($id)) { if ($parent = get_post($parent_id)) { if (preg_match('/single-page.php$/', get_page_template_slug($parent_id))) { $post = get_post($id); if (is_array($permalink)) { // this is for the admin sample permalink $permalink = str_replace('/%pagename%', '#%pagename%', $permalink); } else { if (!is_admin() && get_permalink($parent) === get_permalink()) { // relative $permalink = "#{$post->post_name}"; } else { // absolute $permalink = preg_replace('/\\/' . preg_quote($post->post_name, '/') . '\\/$/', "#{$post->post_name}", $permalink); } } } } } return $permalink; } } Filters::add();