php DOMElement operation xml document demonstration
- 2020-05-30 19:43:26
- OfStack
<?php
//Store your html into $html variable.
$html="<html>
<head>
<title>Rakesh Verma</title>
</head>
<body>
<a href='http://example.com'>Example</a>
<a href='http://google.com'>Google</a>
<a href='http://www.yahoo.com'>Yahoo</a>
</body>
</html>";
$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 < $hrefs->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 $html;
?>
Case 2
/*<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!-- css Style definition without a dot. Such as: name{color:red;} -->
<?xml-stylesheet type="text/css" href="css.css"?>
<!-- The introduction of dtd Document definition file (root element: class) <!DOCTYPE The class SYSTEM "class.dtd" /> -->
<!-- <!DOCTYPE The class [
<!ELEMENT The class ( students +)>
<!ELEMENT students ( The name , age , introduce )>
<!ELEMENT The name (#PCDATA)>
<!ELEMENT age (#PCDATA)>
<!ELEMENT introduce (#PCDATA)>
] /> -->
< The class >
< students number="101">
< The name > The Monkey King </ The name >
< The name > Sun walkers </ The name >
< age >123</ age >
< introduce ><![CDATA[&*$% Special string ^&#$&]]></ introduce >
</ students >
< students number="10"2">
< The name > Bones jing </ The name >
< age >140</ age >
< introduce > Introduce the content </ introduce >
</ students >
</ The class >
*/
$xmldoc = new DOMDocument('1.0', 'UTF-8');
$xmldoc->load('datas.xml');
$itemsNodeList = $xmldoc->getElementsbyTagName(' students ');
$itemElement = $itemsNodeList->item(0);// Get the first 1 A complete student information node
$itemChildsNodeList = $itemElement->getElementsbyTagName(' The name ');// Get a child node "name", perhaps with more than one name
$itemChildNode = $itemChildsNodeList->item(0);// Get the first 1 Name node
echo $itemChildNode->nodeValue;// Output node value
// Encapsulated as a function
$nodeArr = array(' The name ', ' age ', ' introduce ');
function getNodeVal($xmldoc, $itemsName, $nodeArr){
$items = $xmldoc->getElementsByTagName($itemsName);
for($i=0; $i < $items->length; $i++){
$item = $items->item($i);
foreach($nodeArr as $node){
$data[$i][] = $item->getElementsByTagName($node)->item(0)->nodeValue;
}
}
return $data;
}
$data = getNodeVal($xmldoc, ' students ', $nodeArr);
print_r($data);