Proper way to set up this XML in PHP

[carlym886]

UPDATED DUE TO ERROR IN CODE AND DESCRIPTIONI am pretty new to XML but am holding my own when creating an XML file using the built in functions. I can create the file like so...\[code\]$xml['doc'] = new DOMDocument('1.0', 'utf-8');\[/code\]and so forth and it outputs like so...\[code\]<?xml version="1.0" encoding="utf-8"?><adf>elements...</adf>\[/code\]what I need is...\[code\]<?xml version="1.0" encoding="utf-8"?><?adf version="1.0"?><adf>elements...</adf>\[/code\]Looking for the correct way to add <adf version="1.0"?>? It does not need a closing tag.I am following a specific format required. Specifically ADF 1.0 as documented here....http://en.wikipedia.org/wiki/Auto-lead_Data_Format