Hi Monks,

I want to make sure the element is unique before it added to the DOM tree. I am using older XML::LibXML which have getElementsById only(1.5x), so I call the getElementsById (I want to use something newer but I can't):

my $elem = $doc->getElementsById($id);

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then I use the defined($elem) to see the elem is defined or not, and it always return false even 2 id is identical. How can I check the $elem is a Element or not?

*by the way, the id contains a dot (.), does it matter?

In reply to XML::LibXML question: How can I know there is duplicate element exist? by Anonymous Monk

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