By default the PIs are "hidden" in the text (in fact the text of the element doesn't even include the PI). In order to get 3 children, you need to use the pi => 'process' option when you create the XML::Twig object. See the pi option doc. You can then even set a handler on the PIs

In reply to Re: XML::Twig and Processing Instructions by mirod
in thread XML::Twig and Processing Instructions by eff_i_g

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