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ZNG  August 2014

ZNG August 2014

Subject:

Antw: SRU parsing with PHP

From:

Jörg Prante <[log in to unmask]>

Reply-To:

SRU (Search and Retrieve Via URL) Implementors

Date:

Tue, 19 Aug 2014 14:57:01 +0200

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (109 lines)

Hi Fred,

this is a PHP XML issue, not much SRU implementation related - although
off-topic, I allow myself to give some hints.

Maybe you should take a closer look at PHP "SimpleXML"
http://php.net/manual/en/book.simplexml.php

You have to iterate by namespace over the children, like this

<?php
$content =
file_get_contents('http://explor.bcu.ac.uk/IntraLibrary-SRU?operation=searchRetrieve&query=gaelic&version=1.1');
$xml = simplexml_load_string($content);
$namespaces = $xml->getNameSpaces(true);
$children = $xml->children($namespaces['SRW']);
print_r($children);
?>

The 'dc' namespace can be iterated within the records.

In Perl, XML processing from SRU is really simple, like this

use strict;
use warnings;

use Data::Dumper;
use LWP::Simple;
use XML::Simple;

my $content =
get("http://explor.bcu.ac.uk/IntraLibrary-SRU?operation=searchRetrieve&query=gaelic&version=1.1");

my $xs = XML::Simple->new();
my $ref = $xs->XMLin($content);

print Dumper $ref;

Best,

Jörg

>>> Fred Riley <[log in to unmask]> schrieb am 19.08.2014 um 13.10
Uhr in
Nachricht
<[log in to unmask]>:
> Hi
> 
> 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 'meta'? 
> 
> The query I want to post is related to, and descended from, a query I
posted 
> to StackOverflow a while back 
>
(http://stackoverflow.com/questions/24248429/simplest-way-to-parse-sru-xml).
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:
> 
>
http://explor.bcu.ac.uk/IntraLibrary-SRU?operation=searchRetrieve&query=gaelic&
> version=1.1 
> 
> 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 :)
> 
> Fred
> www.fredriley.org.uk




-- 
Jörg Prante
hbz, Gruppe Portale
- Digitale Bibliothek und Online-Fernleihe -
Postfach 270451, 50510 Köln, Deutschland
Telefon +49-221-40075-156, Fax +49-221-40075-190
[log in to unmask]
http://www.hbz-nrw.de

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