xml:lang在PHP中解析

时间:2010-10-22 11:44:10

标签: php xml

<?xml version="1.0" encoding="UTF-8"?>
  <answer>
    <describe data="aircompany">
      <data>
        <code xml:lang="ru">FW</code>
        <code xml:lang="en">FW</code>
      </data>
      <data>
        <code xml:lang="ru">UT</code>
        <code xml:lang="en">ЮТ</code>
      </data>
    </describe>
  </answer>

我需要获取节点值,有xml:lang =“en”。怎么能在PHP中做到这一点?

5 个答案:

答案 0 :(得分:5)

是的,SimpleXML有效,但如果遇到麻烦,请尝试添加xml namespace

E.g:

<?php
$xmlstr = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<answer xmlns:xml="http://www.w3.org/XML/1998/namespace">
    <describe data="aircompany">
      <data>
        <code xml:lang="ru">ФВ</code>
        <code xml:lang="en">FW</code>
      </data>
      <data>
        <code xml:lang="ru">УТ</code>
        <code xml:lang="en">UT</code>
      </data>
    </describe>
</answer>
XML;

$xml = new SimpleXMLElement($xmlstr);

foreach ($xml->xpath('//data/code[@xml:lang="en"]') as $code) {
    echo $code, '<br/>', PHP_EOL;
}
?>

答案 1 :(得分:5)

XPath有一个特殊的构造来处理xml:lang属性:

$xml = new SimpleXMLElement($strXML);
$data = $xml->describe->data[0];
$elCode = $data->xpath("code[lang('en')]"); // returns array of SimpleXMLElement
assert(count($elCode)==1);
$code_en = (string) $elCode[0];

P.S。对Sirena的问候;)

答案 2 :(得分:1)

之前已经回答:

$dom =new DOMDocument;
$dom->loadXML( $xml );
$xPath = new DOMXPath( $dom );
$nodes = $xPath->query( '/answer/describe/data/code[@xml:lang = "en"]' );
foreach( $nodes as $node ) {
    echo $node->nodeValue; 
}

没有XPath的替代方案:

$dom =new DOMDocument;
$dom->loadXML ($xml );
foreach( $dom->getElementsByTagName( 'code' ) as $node ) {
    if( $node->getAttribute( 'xml:lang' ) === 'en') {
        echo $node->nodeValue;
    }
}

答案 3 :(得分:1)

感谢。 我用这个方法:

$XMLObj = new SimpleXMLElement($XML);
print_r($XMLObj->xpath('/answer/describe/data/code[@xml:lang = "en"]'));

答案 4 :(得分:0)