Getting the size of a Dir including Sub Dirs

[Anon]

Has anyone more clever than me written a bit of code that gets the size of a directory plus all of it's sub-directories.

I suspect that there's a shell command you could use in Unix, but what about a generic bit of PHP that would do the job?

Many thanks!
matt.

[Anon]

I have done this before I just started with my root directory and and Started a variable called $count then i looped through the dir and look for files, I then got the filesize using
$basedir = "/www/somedir/";
chdir($basedir);
$dir = dir(".");
while ($file = $dir->read()) {
if (is_file($file)) {
$count = ($count + filesize($file));
}
if (is_dir($file)) {
$dirlist[] = $file;
}

This will get the filesize and add it up for the files in the main dir and place the directories into an array. Now I would loop through t the array and chdir into each one and get the counts if there are subdirs I would add them into the subdirs array like above
if (count($dirlist) > 0) {
while (list ($key, $val) = each ($dirlist)) {
chdir($val);
$dir = dir(".");
while ($file = $dir->read()) {
if (is_file($file)) {
$count = ($count + filesize($file));
}
if (is_dir($file)) {
$subdirlist[] = $file;
}
chdir($basedir);

}
}

This should work for the main dir and any sub dirs under it.