How do I output XML in the view?

[eluser]JHackamack[/eluser]
The XML heading tag is similar to the <DOCTYPE tag you use at the top of HTML. It tells the client the encoding and version of xml to look against. Some clients require that it be in, some do not, it all depends on your requirement. Just remember if you have a validation script that checks for validation and don't include the &lt;?xml then it would most likely fail.