xml with PHP

tardigrade · 03-07-2009, 09:21 PM

I have an xml document that I want to extract nodes as a new smaller xml file. Take:

Code:

<root> 
 <sub id="1">
   [Lots of other children]
 </sub>
 <sub id="n">
   [...]
 </sub>
</root>

to a new xml file:

Code:

<root>
 <sub id="1">
  [Lots of other children]
 </sub>
</root>

What I am trying to do is extract each <sub> as a new xml file or string with formatting, which I will output to the browser with
XSLTProcessor::importStyleSheet($xsl)
XSLTProcessor::transformToXML($xml);

I have an xsl document that I can use to transform the whole document. I could modify it to take out the root take, but it would also be nice to wrap each extracted sub document in a <root> tag.

I am really stuck on this. It seems reasonable to me.
Thanks in advance.

shakezilla · 03-10-2009, 11:20 AM

This has no replies yet, so I'll just make a suggestion. I don't know the first thing about XSLTProcessor, so I can't help you there.

However, I have used simplexml in the past. I thought it was very easy to use, although it obviously is not as powerful or robust as some other libraries. FWIW

Also, if your files are going to be formatted like in your example, it may be easier to just use sed or perl or something. If you can just look for a single line with a <sub> tag, that might be easier than doing real xml parsing.