Array of all fields?

Hi,
I understand that I can query attachment fields with:

´
$attachments->field( ‘XXX’ );
´
however it’s a bit annoying that I need to do this with all fields. Is there a function or code snippet which allows me to store all fields in an array – eg something like:

$fields = $attachments->get_fields();
$field_results = array();

foreach($fields as $field)
{
$field_results[] = $attachments->field( $field );
}

Thanks,
Danny

http://ww.wp.xz.cn/extend/plugins/attachments/