PHP: Recursive Directory Functions

PHP: File Recursion

function recursive_delete($dir) {
	$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir), RecursiveIteratorIterator::CHILD_FIRST);
	foreach ($iterator as $file) {
		$path = $file->__toString();
	    if($file->isDir()) {
	    	rmdir($path);
	    } else {
	    	unlink($path);
	    }
	}
}

function recursive_copy($dir, $dest) {
	$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir), RecursiveIteratorIterator::CHILD_FIRST);
	foreach ($iterator as $file) {
		$path = $file->__toString();
		$relpath = substr($path, strlen($dir));
		if($file->isDir()) {
			mkdir($dest.$relpath);
		} else {
	    		copy($path, $dest.$relpath);
	    }
	}
}