Clear directory recursive in php - low memory consumption (big directories)

clear_recursive.php

<?php

function clearDirectoryRecursive($dir) {
	if ($handle = opendir($dir)) {
		while (false !== ($entry = readdir($handle))) {
			if ($entry == '.' || $entry == '..')
				continue;

			echo $entry."\n";
			if (is_dir($dir.'/'.$entry)) {
				clearDirectoryRecursive($dir.'/'.$entry);
				rmdir($dir.'/'.$entry);
			}
			else {
				unlink($dir.'/'.$entry);
			}
		}

		closedir($handle);
	}
}