Object oriented style:
class XMLWriter {Procedural style:
bool xmlwriter_write_element ( resource xmlwriter, string name, string content )Writes a full element tag.
xmlwriter
仅用于过程调用。resource 是被修改的 XMLWriter 资源。此资源来自对 xmlwriter_open_uri() 或 xmlwriter_open_memory() 的调用
name
The element name.
content
The element contents.