Tutorial: output mysql data as XML question

so i get this tutorial… but when Jubba says that using this line of code… [size=2][font=Courier New][color=#0000bb]header[/color][color=#007700]([/color][color=#dd0000]“Content-type: text/xml”[/color][color=#007700]); [font=Verdana][size=2][color=black]… will make any program interepret it as xml… does that mean i can just use a loadVars object in flash and this will in turn be XML?? or do i need to actually write the XML to a file… then use xml.load…??? thanks[/color][/size][/font]
[/color][/font][/size]