PHP domelement Examples of manipulating XML documents

/* <班级> <学生 number="101"> <名字> Monkey king <名字> Sun Xing People <年龄> 123 <介绍>&*$%特殊字串^&#$& <学生 number="10"2"> <名字> Bones Jing <年龄> 140 <介绍> Introduction Content */ Copy Code 2. PHP code /** *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 first complete student information node $itemChildsNodeList = $itemElement->getelementsbytagname (' name ');//Get child node "name", perhaps with multiple names $itemChildNode = $itemChildsNodeList->item (0);//Get First name node echo $itemChildNode->nodevalue;//Output node value Encapsulation into functions $NODEARR = Array (' name ', ' age ', ' introduction '); function Getnodeval ($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, ' student ', $NODEARR); Print_r ($data); Adding nodes $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: $bytes bytes": ' Save Failed '; Delete a node $xmldoc = new DOMDocument (' 1.0 ', ' UTF-8 '); $xmldoc->load (' datas.xml '); $student = $xmldoc->getelementsbytagname (' Student ')->item (2);//Locate the node you want to delete directly $student->parentnode->removechild ($student);//delete method of parent node $xmldoc->save (' datas.xml '); modifying node values $student = $xmldoc->getelementsbytagname (' Student ')->item (2); $student->getelementsbytagname (' Age ')->item (0)->nodevalue + = 10; $student->setattribute (' id ', ' 110 '); $xmldoc->save (' datas.xml '); Applying an Xpath lookup node $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 Manipulation XML /* 1001 200 USD Daming Tian Long Eight Department 1002 321 USD Tom Laughing and proud of the lake 1004 182 USD John doe Readers */ $xml = simplexml_load_file (' books.xml '); $books = $xml->book; Echo $books [1]->title. $books [1][' house '];//direct pointing to the second book foreach ($xml as $item) { echo $item->title, ", $item [' House '], ' '; } ?> Copy Code

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