Враппер glob
Доступен начиная с версии PHP 5.3.0
<?php
// Loop over all *.php files in ext/spl/examples/ directory
// and print the filename and its size
$it = new DirectoryIterator("glob://ext/spl/examples/*.php");
foreach($it as $f) {
printf("%s: %.1FK\n", $f->getFilename(), $f->getSize()/1024);
}