I am not familiar with PHP XML processing routines, but in other
languages, I actually find it most convenient to simply remove the
namespaces from the XML before trying to deal with the XML.
Yes, heretical. Yes, it could be a problem if the document contains two
different elements with the same name but different namespace in a way
that conflicts (I've NEVER actually run into that problem).
But so many XML libraries make it so hard to deal with namespaces (and
often have bugs with it), I often find it most convenient to just remove
em and have a namespace-less document.
Of course, whether you can do THAT (remove namespaces) conveniently may
depend on your XML processing library too. Sorry, not familiar with how
this is done in PHP.
On 8/19/14 11:41 AM, Fred Riley wrote:
> Thanks, Mike, and to Jörg for his offline reply. You're right, the XML
> returned from the SRU query is valid. My problem, with which I've
> grappled with the help of Monica Duke (whom you'll know of) despite her
> being on maternity leave, is traversing the hierarchy of children in a
> multi-namespace document to get at the info I need. So, in the example I
> the returned XML has nested namespaces, and I was trying to get hold of
> record fields (eg title, description) by traversing the hierarchy of
> children, but got stuck amongst eye-scrunching XML and PHP code. I put
> some test scripts online
> (http://bcu3rdstrmweb2.bcu.ac.uk/phptests/friley/intralibrary/) which
> were my early and failed efforts to do this some weeks back. I'm hoping
> that returning now with a fresh mind, and picking brains on this list,
> will lead to a fresh approach.
> I'm off on leave for two days so won't be on this until Friday, when
> I'll give Jörg's code a bash.
> (If you're getting /déja vu/, Mike, it's because I posted a precursor to
> this query to cetis-metadata on 12th June, and you and Monica
> contributed to the thread. )
> *From:*SRU (Search and Retrieve Via URL) Implementors
> [mailto:[log in to unmask]] *On Behalf Of *Mike Taylor
> *Sent:* 19 August 2014 13:41
> *To:* [log in to unmask]
> *Subject:* Re: SRU parsing with PHP
> Fred, I think this forum is perfectly appropriate.
> What exactly is it that you're having difficulty with? Looks to me like
> you have a perfectly good XML document there. You can feed it to the XML
> parser of your choice in PHP, and walk the resulting tree to extract the
> information you need.
> Do you have a more specific query?
> -- Mike.
> On 19 August 2014 12:10, Fred Riley <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
> This is my first message to this list, which I've only just joined
> at the recommendation of a colleague. I'm looking to develop a
> website for Open Educational Resources (OER), which will query SRU
> services in open repositories. I've been trying to write PHP scripts
> to query SRU services, but running into the sand parsing the
> returned XML. My preliminary question is: is this listserv an
> appropriate place to post technical queries about SRU, or is more
> The query I want to post is related to, and descended from, a query
> I posted to StackOverflow a while back
> The repository I'm wanting to query, in the first instance, is the
> Intralibrary installation at my current institution (SRU service
> URL: http://explor.bcu.ac.uk/IntraLibrary-SRU). An example query I
> need to parse the results of is:
> If I can get SRU querying of this repository working then it'll be
> applicable to other repositories.
> As background, I have experience of learning object repository
> (Intralibrary) administration, and of learning object metadata
> schemas (especially UK LOM Core) and applications. I'm also an
> experienced PHP coder. I've done an awful lot of reading of fine
> manuals, fora and websites. I have a half-decent understanding of
> XML but am no expert, and know nothing at all about XPath and XSLT.
> Thanks in anticipation for your tolerance and help :)
> www.fredriley.org.uk <http://www.fredriley.org.uk>