Delete files from directory

[eluser]Unknown[/eluser]
This is code of delete_files function :

function delete_files($path, $del_dir = FALSE, $level = 0)
{
// Trim the trailing slash
$path = preg_replace("|^(.+?)/*$|", "\\1", $path);

if ( ! $current_dir = @opendir($path))
return;

while(FALSE !== ($filename = @readdir($current_dir)))
{
if ($filename != "." and $filename != "..")
{
if (is_dir($path.'/'.$filename))
{
// Ignore empty folders
if (substr($filename, 0, 1) != '.')
{
delete_files($path.'/'.$filename, $del_dir, $level + 1);
}
}
else
{
unlink($path.'/'.$filename);
}
}
}
@closedir($current_dir);

if ($del_dir == TRUE AND $level > 0)
{
@rmdir($path);
}
}
You can see at http://ellislab.com/codeigniter/user-gui...elper.html show that :

delete_files('path')

Deletes ALL files contained in the supplied path. Example:
delete_files('./path/to/directory/');

It mean : you supply argument is path not file !

My English is not good :d