Example of php DOMElement operating xml document

/* --> ] / > - 123

White Bone Essence 140 Introduction content */

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/** *DOMElement XML *http://bbs.it-home.org */ $xmldoc = new DOMDocument('1.0', 'UTF-8'); $xmldoc->load( 'datas.xml');

$itemsNodeList = $xmldoc->getElementsbyTagName('Student'); $itemElement = $itemsNodeList->item(0);//Get the No. A complete student information node $itemChildsNodeList = $itemElement->getElementsbyTagName('name');//Get the child node "name", there may be multiple names $itemChildNode = $itemChildsNodeList->item(0) ;//Get the first name node echo $itemChildNode->nodeValue;//Output node value

//Encapsulate it into a function $nodeArr = array('Name', 'Age ', 'Introduction'); function getNodeVal($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, 'Student', $ nodeArr); print_r($data);

//Add node $xmldoc = new DOMDocument('1.0', 'UTF-8'); $xmldoc->load( 'datas.xml'); $items = $xmldoc->getElementsByTagName('Class')->item(0);//Root node $student = $xmldoc->createElement('Student'); //Create a new student node $stu_name = $xmldoc->createElement('name','Zhang San'); $stu_age = $xmldoc->createElement('age','15'); $stu_intro = $xmldoc->createElement('Introduction','Strong hands-on ability and stable performance'); $items->appendChild($student); $student->appendChild($stu_name); $ student->appendChild($stu_age); $student->appendChild($stu_intro); $bytes = $xmldoc->save('datas.xml'); echo ($bytes)? "Write Lost: $bytes bytes": 'Save failed';

//Delete node $xmldoc = new DOMDocument('1.0', 'UTF-8'); $xmldoc-&gt ;load('datas.xml'); $student = $xmldoc->getElementsByTagName('student')->item(2);//Directly find the node to be deleted $student->parentNode-&gt ;removeChild($student);//Delete method of parent node $xmldoc->save('datas.xml');

//Modify node value $student = $xmldoc ->getElementsByTagName('student')->item(2); $student->getElementsByTagName('age')->item(0)->nodeValue += 10; $student-> setAttribute('id', '110'); $xmldoc->save('datas.xml');

//Apply Xpath to find nodes

$xml = new DOMDocument('1.0', 'UTF-8'); $xml->load('dat.xml'); $xpath = new DOMXPath($xml); $nodeList = $ xpath->query('/aaa/bbb/ddd/fff'); echo $nodeList->item(0)->nodeValue;

//SimpleXML class operation xml /* 1001 200 yuan Da Ming Dragon Babu 1002 321 yuan Zhang San Xiaoao Jianghu 1004 182 yuan 李思 reader */ $xml = simplexml_load_file('books.xml'); $books = $xml-&gt ;book; echo $books[1]->title . $books[1]['house'];//Directly points to the second book foreach($xml as $item){ echo $item-&gt ;title,' ',$item['house'],' '; } ?>

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