Thanks, all, for pointing me to the SPL iterators. i've been hunting
around and i've managed to come up with a working script. I know it
could be better, though. I know this is terribly inefficient -- a lot
of manual repetition and no recursion. Here's what I've got,
commenting my concerns:
<?php
// start from the current directory
$dirs = new DirectoryIterator('./');
//open master ul
echo '<ul>';
foreach ( $dirs as $dir )
{
// only get dirs, exclude . and ..
// seems like this should be a function...
if (($dir->isDir()) AND ($dir != '.') AND ($dir != '..'))
{
// begin each qualifying dir with an li
echo '<li>' . $dir;
// don't close the li, check again, one level deeper
// here's where i'm missing recursion, i think...
$subDirs = new DirectoryIterator('./' . $dir .'/');
if ($subDirs->valid())
{
// second verse, same as the first...
echo '<ul>';
foreach ($subDirs as $subDir)
{
if (($subDir->isDir()) AND ($subDir != '.') AND ($subDir !='..'))
{
// i could manually add another level check, i guess...?
echo '<li>'. $subDir . '</li>';
}
}
// close second list
echo '</ul>';
}
//close first-level item
echo '</li>';
}
}
//close master ul
echo '</ul>';
?>
this will work for me, but it's bloated, i know. and it's rendering
unnecessary <ul /> in the code wherever there isn't a subdirectory (i
can't get a hasChildren() check to work properly. I'd appreciate any
feedback.
I've been referring to the SPL documentation in the manual off
php.net, and the examples at phpro.org. if there are any others out
there, i'd be happy to keep digging!
On 10/30/08, Jochem Maas <jochem@xxxxxxxxxxxxx> wrote:
> Joe Schaeffer schreef:
>
> > Well, that makes things much easier (and that should teach me to rely
> > on a 5-year-old O'Reilly book...)! Thanks for the help!
> >
> > I'm able to display all the contents of the correct dirs and subdirs,
> > but I'm struggling with my implementation. Since I'm trying to nest
> > unordered lists, I can't seem to 'catch' sub-directories to nest it
> > within their parent <li> tags (and then close the corresponding <ul>
> > when necessary. Before I spend time trying to figure out how to chain
> > the iterators or mine the returned arrays, is it fair to ask if this
> > approach is even possible?
>
>
> sure, RecursiveIteratorIterator or DirectoryTreeIterator both have
> a getDepth() method which might come in useful.
>
> alternatively you could subclass either and define the beginChildren() and
> endChildren() methods to output the open/close <UL> tags.
>
> have a hunt around here: http://www.php.net/~helly/php/ext/spl/
>
>
> >
> > Again, thanks for the point in the right direction!
> >
> >
> >
> > On Thu, Oct 30, 2008 at 1:30 PM, Jochem Maas <jochem@xxxxxxxxxxxxx> wrote:
> >> Joe Schaeffer schreef:
> >>> New to PHP development, new to the list; searched the archives but
> >>> didn't find an answer (or at least nothing i could successfully
> >>> adapt).
> >>>
> >>> I have a (readable) directory structure like so:
> >>>
> >>> ../navigation
> >>> /cats
> >>> /dogs
> >>> /beagles
> >>> /collies
> >>> /some/other/dirs/
> >>> /horses
> >>>
> >>> I need to display those directories in nested html lists (marked up
> >>> with css). Using PHP on the above, I'd like to produce the following
> >>> HTML:
> >>>
> >>> <ul>
> >>> <li>cats</li>
> >>> <li>dogs
> >>> <ul>
> >>> <li><beagles></li>
> >>> <li><collies>
> >>> <ul><li>some...</li></ul>
> >>> </li>
> >>> </ul>
> >>> </li>
> >>> <li>horses</li>
> >>> </ul>
> >>>
> >>> I'm able to display one level deep (cats, dogs, horses), but not nest
> >>> the lists accordingly. Since this is for a navigation structure,
> >>> obviously I'll have anchors in the <li></li> lines. They'll be
> >>> formatted like so
> >>> href="index.php?section=dogs&chapter=collies&verse=some .
> >>>
> >>> Some details about my environment:
> >>> 1) no files will be in the /navigation (or sub) dirs, but i'd
> >>> (ideally) like to define a depth, to prevent >3-4 levels of
> >>> navigation.
> >>> 2) I can successfully exclude dirs (. and .. and anything else I define)
> >>> 3) the actual PHP script probably won't be in the /navigation
> >>> directory, so I'll need a defined starting path (ie, $root =
> >>> /site/docs/includes/navigation/ or somesuch...).
> >>> 4) no database access (otherwise this whole contraption wouldn't be an issue...)
> >>>
> >>> Any help is greatly appreciated, thank you in advance.
> >> RecurisiveDirectoryIterator and FilterIterator classes from SPL is something that will get you home.
> >> the archives and the intertubes offer examples (etc) on how to use these.
> >>
> >>> --joe
> >>>
> >>
> >
>
>
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