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    <p><strong>Edit:</strong></p> <p>Changed to cater for updated question.</p> <p>I'm using an array index of <code>__title</code> to hold the page title. As long as you never have a directory in your tree called <code>__title</code> this should be fine. You're free to change this sentinel value to anything you wish however.</p> <p>I have also changed it so the list building function returns a string, so that you can store the value for use later in your page. (You can of course just do <code>echo build_list(build_tree($paths))</code> to output the list directly.</p> <pre><code>&lt;?php $paths = array( 'about/contact/' =&gt; 'Contact Us', 'about/contact/form/' =&gt; 'Contact Form', 'about/history/' =&gt; 'Our History', 'about/staff/' =&gt; 'Our Staff', 'about/staff/bobjones/' =&gt; 'Bob', 'about/staff/sallymae/' =&gt; 'Sally', 'products/' =&gt; 'All Products', 'products/gifts/' =&gt; 'Gift Ideas!', 'products/widgets/' =&gt; 'Widgets' ); function build_tree($path_list) { $path_tree = array(); foreach ($path_list as $path =&gt; $title) { $list = explode('/', trim($path, '/')); $last_dir = &amp;$path_tree; foreach ($list as $dir) { $last_dir =&amp; $last_dir[$dir]; } $last_dir['__title'] = $title; } return $path_tree; } function build_list($tree, $prefix = '') { $ul = ''; foreach ($tree as $key =&gt; $value) { $li = ''; if (is_array($value)) { if (array_key_exists('__title', $value)) { $li .= "$prefix$key/ &lt;a href=\"/$prefix$key/\"&gt;${value['__title']}&lt;/a&gt;"; } else { $li .= "$prefix$key/"; } $li .= build_list($value, "$prefix$key/"); $ul .= strlen($li) ? "&lt;li&gt;$li&lt;/li&gt;" : ''; } } return strlen($ul) ? "&lt;ul&gt;$ul&lt;/ul&gt;" : ''; } $tree = build_tree($paths); $list = build_list($tree); echo $list; ?&gt; </code></pre>
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    1. COThanks! I just realized that it needs to actually be complicated one more level by also including the page NAME (Along with path) so that the final output is a link with a title. I just posted some thoughts to @casablanca if you want to give it a go... I think i am on the right track, but frankly cannot ever seem to figure out multi-dimensional arrays. THANKS!
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    2. CO@tech See updated answer for updated code :)
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    3. COTHANK YOU VERY MUCH! This works perfectly. I added another sub-routine to apply classes to the various hierarchies of <ul> tags and everything works great. I am going to have to do some extra reading to figure out exactly WHY this works, as I cannot quite follow all the steps...but I will figure it out and learn a lot from you. Thank you very much!
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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