<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE phptest SYSTEM "notfound.dtd" [ <!ENTITY % incent SYSTEM "inc.ent"> %incent; ]> <root id="elem1"> Plain text. <elem1> <!-- comment --> <elem2> <![CDATA[CDATA block]]> <elem3> &included-entity; <elem4> <?test processing instruction ?> </elem4> </elem3> </elem2> </elem1> </root>