list directories by date modified?

I have a script that reads all directory names within a specific
location (only containing folders), then lists all jpeg files in those
directories. Here is my script:

function getDir($dir,$foldername){
$d2 = opendir($dir);
while (false !== ($file = readdir($d2))) {
$ext=substr($file,(strlen($file)-3),strlen($file));
if($ext=="jpg" || $ext=="JPG"){
// list $file under heading $foldername
}
}
}

$d1 = opendir('ONLINE/');
while (false !== ($folder= readdir($d1))) {
if($folder!="" && $folder!="." && $folder!=".."){
getDir('ONLINE/'.$folder."/",$folder);
}
}

At the moment, the dirs are read alphabetically, but I would like to
list them by order of date modified.

Can PHP retrieve date information from dirs? If so, how does one do
it?

Cheers,

Eclectic.

date( "d/m/y", $file )

Frizzle.

Eclectic wrote:
<snip>
> At the moment, the dirs are read alphabetically, but I would like to
> list them by order of date modified.
>
> Can PHP retrieve date information from dirs? If so, how does one do
> it?

http://in2.php.net/filemtime

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/

On 16 Apr 2005 19:20:49 -0700, Eclectic wrote:
> $ext=substr($file,(strlen($file)-3),strlen($file));

Easier: $ext = substr( $file, -3 );

> while (false !== ($folder= readdir($d1))) {
>
> At the moment, the dirs are read alphabetically

No, they are read in 'system order' which happens to be alphabetically
(maybe because they were created in that order? see php.net/readdir). If
you want to list the dirs in some particular order, you have to read
them all first, then sort the array, then process the results.

$folders = array();
$index = array();

$basedir = './';
$dh = opendir( $basedir );

clearstatcache();
while ( FALSE !== ($entry = readdir( $dh )) )
if ( $entry != '.' && $entry != '..' )
{
$path = $basedir.$entry;
if ( is_dir( $path ) )
{
$folders[] = $path;
$index[] = filemtime( $path );
}
}

asort( $index );
foreach ( $index as $i => $t )
echo date( 'd-m-Y H:i:s', $t ).' '.$folders[$i]."\n";


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