php xml xpath

2009-09-24 文章来源：互联网浏览次数：1115 分享文章

file.xml
<?xml version="1.0" encoding="utf-8"?>
<root>
<file name="test.php" pass="854230">
    <username type="OKKK">owner888</username>
    <filesize>12M</filesize>
</file>
<file name="test.php">
    <username>111888</username>
    <filesize>111M</filesize>
</file>
</root>

<?xml version="1.0" encoding="utf-8"?>
<root>
<file name="test.php" pass="854230">
	<username type="OKKK">owner888</username>
	<filesize>12M</filesize>
</file>
<file name="test.php">
	<username>111888</username>
	<filesize>111M</filesize>
</file>
</root>

demo.php
$xml = simplexml_load_file("file.xml"); 
$result = $xml->xpath("file"); 
print_r($result);

$xml = simplexml_load_file("file.xml");
$result = $xml->xpath("file");
print_r($result);

result:
Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [name] => test.php [pass] => 854230 ) [username] => owner888 [filesize] => 12M ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [name] => test.php ) [username] => 111888 [filesize] => 111M ) ) 

Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [name] => test.php [pass] => 854230 ) [username] => owner888 [filesize] => 12M ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [name] => test.php ) [username] => 111888 [filesize] => 111M ) ) 

demo2.php
$xml = simplexml_load_file("file.xml"); 
$result = $xml->xpath("file[@name='test.php'][@pass='854230']/username"); 
print_r($result); 
echo "<br />"; 
echo $result[0]."<br />"; 
echo $result[0][0]."<br />"; 
echo $result[0][type]."<br />";

$xml = simplexml_load_file("file.xml");
$result = $xml->xpath("file[@name='test.php'][@pass='854230']/username");
print_r($result);
echo "<br />";
echo $result[0]."<br />";
echo $result[0][0]."<br />";
echo $result[0][type]."<br />";

result:
Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [type] => OKKK ) [0] => owner888 ) )  
owner888 
owner888 
OKKK

Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [type] => OKKK ) [0] => owner888 ) ) 
owner888
owner888
OKKK

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php xml xpath

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