Sorting an array of filenames by filetype?

That's exactly the code I am using except without the multisort. It should
be an easy retrofit!

Thanks, Joe!

--
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Adobe Community Expert
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"Joe Makowiec" <makowiec@invalid.invalid> wrote in message
news:Xns9A80799FF4649makowiecatnycapdotrE@216.104.212.96...
> On 14 Apr 2008 in macromedia.dreamweaver.appdev, Joe Makowiec wrote:
>
>> On 14 Apr 2008 in macromedia.dreamweaver.appdev, Murray *ACE* wrote:
>>
>>> I have an array of filenames read from a directory list. I can
>>> parse the file type from each filename using a function. How would
>>> I then sort the array by their respective file type, so that all
>>> PDF files sort together in the array, for example? Or would it be
>>> easier to just loop through the array by filetype, printing each
>>> matching array value?
>>
>> http://www.php.net/manual/en/ref.array.php
>>
>> There are a bunch of sorting functions there. array_multisort and
>> uasort both look interesting. Got code?
>
> Dropin for a directory listing in a <ul>:
>
> <pre>
> <?php
> $files2 = array();
> if ($handle = opendir('.')) {
> echo "Input: .\n";
> echo "Directory handle: $handle\n";
> /* This is the correct way to loop over the directory. */
> while (false !== ($file = readdir($handle))) {
> $files[] = $file;
> if (substr($file, 0, 1) != '.') {
> $separator = split('\.', $file);
> $files2[] = array('filename' => $separator[0], 'ext' =>
> $separator[1]);
> }
> echo "$file\n";
> }
> closedir($handle);
>
> // print_r($files);
> // print_r($files2);
>
> foreach ($files2 as $key => $row) {
> $filename[$key] = $row['filename'];
> $ext[$key] = $row['ext'];
> }
>
> array_multisort($ext, SORT_ASC, $filename, SORT_DESC, $files2);
>
> // print_r($files2);
>
> reset($files2);
>
> }
> ?>
> </pre>
> <ul>
> <?php
> foreach ($files2 as $myfile) {
> echo "\t<li>";
> echo $myfile['filename'];
> echo (empty($myfile['ext'])) ? '' : '.' . $myfile['ext'];
> echo "</li>\n";
> }
> ?>
> </ul>
>
> Code's probably uglier than it needs to be, but it works.
>
> --
> Joe Makowiec
> http://makowiec.net/
> Email: http://makowiec.net/contact.php

On 14 Apr 2008 in macromedia.dreamweaver.appdev, Joe Makowiec wrote:

> On 14 Apr 2008 in macromedia.dreamweaver.appdev, Murray *ACE* wrote:
>
>> I have an array of filenames read from a directory list. I can
>> parse the file type from each filename using a function. How would
>> I then sort the array by their respective file type, so that all
>> PDF files sort together in the array, for example? Or would it be
>> easier to just loop through the array by filetype, printing each
>> matching array value?
>
> http://www.php.net/manual/en/ref.array.php
>
> There are a bunch of sorting functions there. array_multisort and
> uasort both look interesting. Got code?

Dropin for a directory listing in a <ul>:

<pre>
<?php
$files2 = array();
if ($handle = opendir('.')) {
echo "Input: .\n";
echo "Directory handle: $handle\n";
/* This is the correct way to loop over the directory. */
while (false !== ($file = readdir($handle))) {
$files[] = $file;
if (substr($file, 0, 1) != '.') {
$separator = split('\.', $file);
$files2[] = array('filename' => $separator[0], 'ext' =>
$separator[1]);
}
echo "$file\n";
}
closedir($handle);

// print_r($files);
// print_r($files2);

foreach ($files2 as $key => $row) {
$filename[$key] = $row['filename'];
$ext[$key] = $row['ext'];
}

array_multisort($ext, SORT_ASC, $filename, SORT_DESC, $files2);

// print_r($files2);

reset($files2);

}
?>
</pre>
<ul>
<?php
foreach ($files2 as $myfile) {
echo "\t<li>";
echo $myfile['filename'];
echo (empty($myfile['ext'])) ? '' : '.' . $myfile['ext'];
echo "</li>\n";
}
?>
</ul>

Code's probably uglier than it needs to be, but it works.

--
Joe Makowiec
http://makowiec.net/
Email: http://makowiec.net/contact.php

That's right! I remember seeing that in the manual. Thanks, I'll look into
it!

--
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go - DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs, Tutorials & Resources
==================


"Michael Fesser" <netizen@gmx.de> wrote in message
news:tjt604hqjd9cccde753mi5se4fu6rpdro9@4ax.com...
> .oO(Murray *ACE*)
>
>>I have an array of filenames read from a directory list. I can parse the
>>file type from each filename using a function. How would I then sort the
>>array by their respective file type, so that all PDF files sort together
>>in
>>the array, for example? Or would it be easier to just loop through the
>>array by filetype, printing each matching array value?
>
> You can always use usort() with your own compare function. But if you
> need a more complicated result, for example sorted by both type and
> name, then have a look at array_multisort(). It looks a bit complicated
> at first, but is very powerful. You would just have to split your data
> into "columns", i.e. you need one array with all the filenames, a second
> array with all the types and so on. These arrays can then be passed to
> array_multisort(). The manual shows an example for that.
>
> HTH
> Micha

.oO(Murray *ACE*)

>I have an array of filenames read from a directory list. I can parse the
>file type from each filename using a function. How would I then sort the
>array by their respective file type, so that all PDF files sort together in
>the array, for example? Or would it be easier to just loop through the
>array by filetype, printing each matching array value?

You can always use usort() with your own compare function. But if you
need a more complicated result, for example sorted by both type and
name, then have a look at array_multisort(). It looks a bit complicated
at first, but is very powerful. You would just have to split your data
into "columns", i.e. you need one array with all the filenames, a second
array with all the types and so on. These arrays can then be passed to
array_multisort(). The manual shows an example for that.

HTH
Micha

On 14 Apr 2008 in macromedia.dreamweaver.appdev, Murray *ACE* wrote:

> I have an array of filenames read from a directory list. I can
> parse the file type from each filename using a function. How would
> I then sort the array by their respective file type, so that all PDF
> files sort together in the array, for example? Or would it be
> easier to just loop through the array by filetype, printing each
> matching array value?

http://www.php.net/manual/en/ref.array.php

There are a bunch of sorting functions there. array_multisort and uasort
both look interesting. Got code?

--
Joe Makowiec
http://makowiec.net/
Email: http://makowiec.net/contact.php

I suppose I could use SQL to group the results, but I don't know how to do
the string manipulations in SQL....

--
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go - DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs, Tutorials & Resources
==================


"Massimo Foti" <massimo@massimocorner.com> wrote in message
news:ftvnls$hl0$1@forums.macromedia.com...
> "Murray *ACE*" <forums@HAHAgreat-web-sights.com> wrote in message
> news:ftvn68$h4m$1@forums.macromedia.com...
>> Right - grouping. It's PHP.
>
> Sorry, my PHP is really too rusty to give you a decent answer
>
> Massimo
>

"Murray *ACE*" <forums@HAHAgreat-web-sights.com> wrote in message
news:ftvn68$h4m$1@forums.macromedia.com...
> Right - grouping. It's PHP.

Sorry, my PHP is really too rusty to give you a decent answer

Massimo

Right - grouping. It's PHP.

--
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go - DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs, Tutorials & Resources
==================


"Massimo Foti" <massimo@massimocorner.com> wrote in message
news:ftvl05$ep3$1@forums.macromedia.com...
> "Murray *ACE*" <forums@HAHAgreat-web-sights.com> wrote in message
> news:ftvipf$cjr$1@forums.macromedia.com...
>>I have an array of filenames read from a directory list. I can parse the
>>file type from each filename using a function. How would I then sort the
>>array by their respective file type, so that all PDF files sort together
>>in the array, for example? Or would it be easier to just loop through the
>>array by filetype, printing each matching array value?
>
> Which server-side language you are using?
>
> BTW Seems you are loking for "grouping", not "sorting"
>
> Massimo
>

"Murray *ACE*" <forums@HAHAgreat-web-sights.com> wrote in message
news:ftvipf$cjr$1@forums.macromedia.com...
>I have an array of filenames read from a directory list. I can parse the
>file type from each filename using a function. How would I then sort the
>array by their respective file type, so that all PDF files sort together in
>the array, for example? Or would it be easier to just loop through the
>array by filetype, printing each matching array value?

Which server-side language you are using?

BTW Seems you are loking for "grouping", not "sorting"

Massimo