Object oriented style:
class XMLWriter {Procedural style:
bool xmlwriter_write_raw ( resource xmlwriter, string content )Writes a raw xml text.
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
content
The text string to write.