On 27/03/2008, Christoph Boget <jcboget@xxxxxxxxx> wrote:
> > > Is that possible? Or is this something I'd have to do programatically
> > > using the nodes returned by the XPath query? Basically, I'm just
> > > trying to get a fragment of the larger xml document...
> > //child[@id='gc3']/child/ancestor-or-self::*
>
>
> Thanks for the response. However, I must be doing something wrong
> here. The test script below isn't doing what I'm expecting:
>
> $xml = '<?xml version="1.0" encoding="UTF-8"?><root><child
> id="c1"><child id="gc1"><child id="ggc1">Great Grand Child
> 1</child><child id="ggc2">Great Grand Child 2</child></child><child
> id="gc2"><child id="ggc3">Great Grand Child 3</child><child
> id="ggc4">Great Grand Child 4</child></child></child><child
> id="c2"><child id="gc3"><child id="ggc5">Great Grand Child
> 5</child><child id="ggc6">Great Grand Child 6</child></child><child
> id="gc4"><child id="ggc7">Great Grand Child 7</child><child
> id="ggc8">Great Grand Child 8</child></child></child></root>';
>
> $doc = new DOMDocument('1.0', 'UTF-8');
> $doc->loadXML( $xml );
>
> $xpath = new DOMXPath($doc);
> $nodeList = $xpath->query("//child[@id='gc3']/child/ancestor-or-self::*");
>
> echo 'Got list list of [' . $nodeList->length . '] nodes:<br>';
> for ($i = 0; $i < $nodeList->length; $i++) {
> echo $nodeList->item($i)->nodeValue . "<br>\n";
> }
>
Only the nodes specified are in the list, but the *values* of the
those nodes include children that aren't in the list.
change your for-loop to this and you'll see just the expected nodes:
foreach ($nodeList as $node) {
echo $node->tagName, ' : ', $node->getAttribute('id'), "<br>\n";
}
does that make sense?
-robin
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