Xml_encode ($ data, encoding = 'utf-8', root = "think") in Thinkphp; how does a function generate an xml file?

Thinkphp xml_encode ($ data, encodingutf-8, root & quot; think & quot;); function how to generate xml files how to use xml_encode under Thinkphp ($ list, encodingutf-8, root & quot; think & quot;); function generation xml file ------ solution ---- xml_encode ($ data, encoding = 'utf-8' under Thinkphp ', root = "think"); how does the function generate xml files?
How to use xml_encode ($ list, encoding = 'utf-8', root = "think") in Thinkphp to generate an xml file


------ Solution --------------------
$ List array: add an array. try again.