SimpleXMLElement->xpath()

(no version information, might be only in CVS)

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

Descrizione

class SimpleXMLElement {

array xpath ( string path )

}

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

Elenco dei parametri

path

An XPath path

Valori restituiti

Always returns an array of SimpleXMLElement objects.

Esempi

Esempio 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";
}
?>

Il precedente esempio visualizzerà:

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

Notice that the two results are equal.