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php中DOMElement操作xml文档实例演示_PHP

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2016-06-01 12:07:58782browse
复制代码 代码如下:
//Store your html into $html variable.
$html="

Rakesh Verma


Example
Google
Yahoo

";
$dom = new DOMDocument();
$dom->loadHTML($html);
//Evaluate Anchor tag in HTML
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");
for ($i = 0; $i length; $i++) {
$href = $hrefs->item($i);
$url = $href->getAttribute('href');
//remove and set target attribute
$href->removeAttribute('target');
$href->setAttribute("target", "_blank");
$newURL=$url.".au";
//remove and set href attribute
$href->removeAttribute('href');
$href->setAttribute("href", $newURL);
}
// save html
$html=$dom->saveHTML();
echo $html;
?>

例2
复制代码 代码如下:
/*






孙悟空名字>
孙行者名字>
123年龄>
介绍>
学生>

白骨精名字>
140年龄>
介绍内容介绍>
学生>
班级>
*/
$xmldoc = new DOMDocument('1.0', 'UTF-8');
$xmldoc->load('datas.xml');
$itemsNodeList = $xmldoc->getElementsbyTagName('学生');
$itemElement = $itemsNodeList->item(0);//得到第一个完整的学生信息节点
$itemChildsNodeList = $itemElement->getElementsbyTagName('名字');//得到子节点“名字”,也许有多个名字
$itemChildNode = $itemChildsNodeList->item(0);//得到第一个名字节点
echo $itemChildNode->nodeValue;//输出节点值
//封装成函数
$nodeArr = array('名字', '年龄', '介绍');
function getNodeVal($xmldoc, $itemsName, $nodeArr){
$items = $xmldoc->getElementsByTagName($itemsName);
for($i=0; $i length; $i++){
$item = $items->item($i);
foreach($nodeArr as $node){
$data[$i][] = $item->getElementsByTagName($node)->item(0)->nodeValue;
}
}
return $data;
}
$data = getNodeVal($xmldoc, '学生', $nodeArr);
print_r($data);
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