SimpleXMLElement
PHP Manual

SimpleXMLElement::xpath

(PHP 5 >= 5.2.0)

SimpleXMLElement::xpathRuns XPath query on XML data

Opis

array SimpleXMLElement::xpath ( string $path )

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

Parametry

path

An XPath path

Zwracane wartości

Returns an array of SimpleXMLElement objects or FALSE in case of an error.

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.


SimpleXMLElement
PHP Manual