XPath Invalid Expression

Question

<?php
  $feed = file_get_contents('http://thexmofo.wordpress.com/feed/');
  $xml = new SimpleXMLElement($feed);
  $xml->registerXPathNamespace('media', 'http://thexmofo.wordpress.com/feed/');
  $images = $xml->xpath('/rss/channel/item/media:content@url');
  var_dump($images);
?>

Can anyone tell my why I'm getting Warning: SimpleXMLElement::xpath() [simplexmlelement.xpath]: Invalid expression followed by bool(false)?

Josh Davis · Accepted Answer · 2010-03-10 02:31:12Z

4

That XPath expression is invalid, that much we know. Now since you didn't say what you were trying to select, all we can do is randomly guess your intentions, so here's my random guess:

/rss/channel/item/media:content/@url

...assuming you're trying to select all the @url attributes in that feed.

answered Mar 10, 2010 at 2:31

Josh Davis

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1 Comment

jay Over a year ago

Josh you guessed... not so randomly since I had made what looks to me like a very close attempt... correctly. Thanks.

Phil Rykoff · Accepted Answer · 2010-03-10 02:10:17Z

1

Well, bool(false) is probably from your var_dump.

Iam not sure if media:content@url is valid xpath...

answered Mar 10, 2010 at 2:10

Phil Rykoff

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