It's really nice to meet you. Nowadays, php seems to be a really hot language. I am a Java programmer, so I am conservative on this language. If you're worried about sessions or response times It is recommended to use REST API (using HTTP protocol). If it is simply XML processing, it will be more helpful than session. Of course, you may be doing it. P.S 1, This is the Google translation. 2, Please point out the awkward part.