wordpress site navigation - php

Question

I'm using following code to display my 3 level menu:
if(!$post->post_parent){
// will display the subpages of this top level page
$children = wp_list_pages("title_li=&child_of=".$post->ID."&echo=0");
}else{
// diplays only the subpages of parent level
//$children = wp_list_pages("title_li=&child_of=".$post->post_parent."&echo=0");
if($post->ancestors) {
// now you can get the the top ID of this page
// wp is putting the ids DESC, thats why the top level ID is the last one
$ancestors = end($post->ancestors);
$children = wp_list_pages("title_li=&child_of=".$ancestors."&echo=0");
// you will always get the whole subpages list
}
}
if ($children) { ?>
<ul id="submenu">
<?php echo $children; ?>
</ul>
<?php } ?>
It lists pages in side bar, second level then 3rd level too. I would like to include very top level too so i would like to my structure to look as follow:
*A
-a
--a
-b
--b
-c
--c
Where as above code is not listing main page i.e. *A, i hope that make sense and someone will be able to help
Thanks,

Answer 1

I found this code snippet at the wordpress codex site, and I think it's exactly what you're looking for, I've pasted it in for convenience:
<?php
//if the post has a parent
if($post->post_parent){
//collect ancestor pages
$relations = get_post_ancestors($post->ID);
//get child pages
$result = $wpdb->get_results( "SELECT ID FROM wp_posts WHERE post_parent = $post->ID AND post_type='page'" );
if ($result){
foreach($result as $pageID){
array_push($relations, $pageID->ID);
}
}
//add current post to pages
array_push($relations, $post->ID); // <---- THIS IS INCLUDING THE PARENT
//get comma delimited list of children and parents and self
$relations_string = implode(",",$relations);
//use include to list only the collected pages.
$sidelinks = wp_list_pages("title_li=&echo=0&include=".$relations_string);
}else{
// display only main level and children
$sidelinks = wp_list_pages("title_li=&echo=0&depth=2&child_of=".$post->ID);
}
if ($sidelinks) { ?>
<h2><?php the_title() ;?></h2>
<ul>
//links in <li> tags
<?php echo $sidelinks; ?>
</ul>
<?php } ?>
It also has some built-in logic to not display everything if this is a highest-level page. Hope this helps!

Answer 2

<div id="breadcrumbs">
Home
<?php
$parent_id = $post->post_parent;
$breadcrumbs = array();
while ($parent_id) {
$page = get_page($parent_id);
$breadcrumbs[] = ''.get_the_title($page->ID).'';
$parent_id = $page->post_parent;
}
$breadcrumbs = array_reverse($breadcrumbs);
foreach ($breadcrumbs as $crumb) echo ' / '.$crumb;
?>
</div>
<h1><?php the_title(); ?></h1>
credit : Ivovic
from : http://wordpress.org/support/topic/display-page-parent-on-page-with-title?replies=13