/**
* This method enables us to add nice features to our xpath
* implementation, like augmenting it with php functions so that we
* can approach some of the functionality of XPath2.
*
* @param DOMDocument $dom
* @return A new XPath object generated for the given dom. The object
* will have all PHP functions registered to augment the native XPath1
* functions.
* @author "David Hazel" <*****@*****.**>
**/
public function generateXPathObject(DOMDocument $dom)
{
// create the object
$xpath = new DOMXPath($this->domDocument);
// Register the php: namespace (required for function augmenting)
$xpath->registerNamespace("php", "http://php.net/xpath");
// Register PHP functions (no restrictions)
$xpath->registerPHPFunctions();
// return the object
return $xpath;
}
$count = 0;
$val = 0;
foreach ($nodelist as $node) {
$count++;
$val += $node->textContent;
}
if ($val > 0) {
return $val / $count;
} else {
return 0;
}
}
$dom = new DOMDocument();
$dom->loadXML('<root xmlns="urn::default"><child>myval</child></root>');
$xpath = new DOMXPath($dom);
$xpath->registerPHPFunctions('MyAverage');
$xpath->registerNamespace("php", "http://php.net/xpath");
$xpath->registerNamespace("def", "urn::default");
$nodelist = $xpath->query("//def:child");
if ($node = $nodelist->item(0)) {
print $node->textContent . "\n";
}
$count = $xpath->evaluate("count(//def:child)");
var_dump($count);
$xpathdoc = $xpath->document;
var_dump($xpathdoc instanceof DOMDocument);
$root = $dom->documentElement;
$root->appendChild($dom->createElementNS("urn::default", "testnode", 3));
$root->appendChild($dom->createElementNS("urn::default", "testnode", 4));
$root->appendChild($dom->createElementNS("urn::default", "testnode", 4));
$root->appendChild($dom->createElementNS("urn::default", "testnode", 5));
protected function xPathDOMFilter($doc, $path, $namespaces = array())
{
$xPath = new \DOMXPath($doc);
foreach ($namespaces as $prefix => $nsuri) {
$xPath->registerNamespace($prefix, $nsuri);
}
$xPath->registerNamespace("php", "http://php.net/xpath");
$xPath->registerPHPFunctions();
$filtered = $xPath->query($path);
$result = $this->createArray($filtered);
return $result;
}
