function directory_size($directory) {
$directorySize=0;
if ($dh = @opendir($directory)) {
while (($filename = readdir ($dh))) {
if ($filename != "." && $filename != "..") {
if (is_file($directory."/".$filename)){
$directorySize += filesize($directory."/".$filename);
}
if (is_dir($directory."/".$filename)){
$directorySize += directory_size($directory."/".$filename);
}
}
}
}
@closedir($dh);
return $directorySize;
}
$directory = "./";
$totalSize = round((directory_size($directory) / 1024), 2);
echo "Directory $directory: ".$totalSize. "kb.";
?>