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<?php 
// Basit bir xml dökümanı ( Start )
$XmlString = <<<XML
<root>
	<node1>
		<subnode1>1</subnode1>
		<subnode2>Lorem 1</subnode2>
		<subnode3>Ipsum 1</subnode3>
	</node1>
	<node1>
		<subnode1>2</subnode1>
		<subnode2>Lorem 2</subnode2>
		<subnode3>Ipsum 2</subnode3>
	</node1>
	<node1>
		<subnode1>2</subnode1>
		<subnode2>Lorem 2-1</subnode2>
		<subnode3>Ipsum 2-1</subnode3>
	</node1>
	<node1>
		<subnode1>3</subnode1>
		<subnode2>Lorem 3</subnode2>
		<subnode3>Ipsum 3</subnode3>
	</node1>
</root>
XML;
// Basit bir xml dökümanı ( End )


$XmlObject = simplexml_load_string($XmlString); // Simple XML Nesnesi Örneği
$Node1List = $XmlObject->xpath("//root/node1"); // XPATH Sorgusu => Tüm node1

echo '<pre>';
print_r($Node1List); // Sorgu Sonucu
echo '</pre>';

echo '<hr>';

$Node1ListFiltered = $XmlObject->xpath("//root/node1/subnode1[. = '2']/parent::*"); // XPATH Sorgusu Şartlı subnode1 == 2

echo '<pre>';
print_r($Node1ListFiltered); // Sorgu Sonucu
echo '</pre>';


?>