Root[1] vs Root (2)

[Branko N. <bra...@in...>]

> I've noticed that root absolute path need to be numbered as root[1]:
>    $set  =  $x1->match("//document", "/root[1]/folder[3]");
>
> In case without [1] after root
>    $set  =  $x1->match("//document", "/root/folder[3]");
> have got error:
> *XPath error in XPath.class.php:2121* The supplied xPath '//document' 
> does not *uniquely* describe a node in the xml document.
>
> Seems strange to me, as root is always the only one.
>
> Branko