Assume an XML file that looks like:
<catalog> <cd> .. </cd> <cd> .. </cd> .. </catalog>
... and that I would like to know the number of CDs. An xpath expression would look like count(/catalog/cd), but how do I run this expression?
$dom = new DOMDocument();
$dom->load("catalog.xml");
$xpath = new DOMXpath($dom);
var_dump($xpath->query("count(/catalog/cd")->item(0));... returns NULL.
Any ideas?
Thanks in advance, Victor
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