Multidimensional Nav Array

[askohen]

Hi. Can someone help me set up an array for a file I am using in navigation? The navigation is an unordered list, which will then get styled as tabs with CSS.

It needs to store 6 things.
1) The name of the link
2) The URL of each link
3) A sub link name, if there is one
4) The sub nav's URL

It should generate something like this:

<ul id="primary">
<li><a href="main.html">Main Item 1</a></li>
<li><a href="main2.html">Main Item 2</a>
<ul id="secondary">
<li><a href="subnav">Sub</a></li>
</ul>
</li>
</ul>

Anyway a one dimensional array is easy. that would be this:

<?php
$nav_items = array(
"Home" => "index.php",
"Resources" => "resources.php",
"Help" => "help.php",
"About NCBI" => "about.php"
);

echo "<ul id=\"primary\">\n";
foreach ($nav_items as $txt => $url) { 
   echo "\t<li><a href=\"$url\">$txt</a></li>\n";
}
echo "</ul>";
?>

But how would I create an array that would also hold sub nav items and their hrefs?

[LeeU]

Please don't double post. Other thread removed.