To generate an XML file based on the results of a database query, how to generate it with thinkphp

To generate an XML file based on the results of a database query, use thinkphp to generate
How does this work?

------Solution--------------------
The first is to declare a header as XML
The next is the node that corresponds to the build you want.
Attention needs to be paid to coding, and node closure.
------Solution--------------------
I didn't think it was that complicated when I generated the XML.

Just use the characters to stitch it up.

It's simple.
Or you can use SimpleXML, not with thinkphp.
------Solution--------------------
I usually use the Phpexcel class

