Welcome to our free XML tutorial. This tutorial is based on Webucator's Introduction to XML Training course.
The DOCTYPE
declaration in an XML document specifies the DTD to which it should conform. In the code sample below, the DOCTYPE
declaration indicates the file should be validated against Beatles.dtd in the same directory.
<?xml version="1.0"?> <!DOCTYPE beatles SYSTEM "Beatles.dtd"> <beatles> <beatle link="http://www.paulmccartney.com"> <name> <firstname>Paul</firstname> <lastname>McCartney</lastname> </name> </beatle> <beatle link="http://www.johnlennon.com"> <name> <firstname>John</firstname> <lastname>Lennon</lastname> </name> </beatle> <beatle link="http://www.georgeharrison.com"> <name> <firstname>George</firstname> <lastname>Harrison</lastname> </name> </beatle> <beatle link="http://www.ringostarr.com"> <name> <firstname>Ringo</firstname> <lastname>Starr</lastname> </name> </beatle> <beatle link="http://www.webucator.com" real="no"> <name> <firstname>Nat</firstname> <lastname>Dunn</lastname> </name> </beatle> </beatles>
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