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SimpleXMLElement->xpath()

SimpleXMLElement->xpath()

(no version information, might be only in CVS)

SimpleXMLElement->xpath() -- Runs XPath query on XML data

Opis

class SimpleXMLElement {

array xpath ( string path )

}

The xpath method searches the SimpleXML node for children matching the XPath path.

Parametry

path

An XPath path

Zwracane wartości

Always returns an array of SimpleXMLElement objects.

Przykłady

Przykład 1. Xpath

<?php
$string
= <<<XML
<a>
<b>
  <c>text</c>
  <c>stuff</c>
</b>
<d>
  <c>code</c>
</d>
</a>
XML;

$xml = new SimpleXMLElement($string);

/* Search for <a><b><c> */
$result = $xml->xpath('/a/b/c');

while(list( ,
$node) = each($result)) {
    echo
'/a/b/c: ',$node,"\n";
}

/* Relative paths also work... */
$result = $xml->xpath('b/c');

while(list( ,
$node) = each($result)) {
    echo
'b/c: ',$node,"\n";
}
?>

Powyższy przykład wyświetli:

/a/b/c: text
/a/b/c: stuff
b/c: text
b/c: stuff

Notice that the two results are equal.