PHP XML Operation Class DOMDocument

DOMDocument related content.

Property:

Attributes a list of properties for a storage node (read-only)
ChildNodes List of child nodes of the storage node (read-only)
DataType returns the data type of this node
Definition of a node defined in a DTD or XML schema (read-only)
Doctype the specified document type node (read-only)
DocumentElement returns the root element of the document (Readable and writable)
FirstChild returns the first child node of the current node (read-only)
Implementation return Xmldomimplementation Object
LastChild returns the last child node of the current node (read-only)
NextSibling returns the next sibling node of the current node (read-only)
NodeName returns the name of the node (read-only)
NodeType returns the type of the node (read-only)
nodeTypedValue Storage node value (readable and writable)
NodeValue returns the text of the node (readable and writable)
Ownerdocument returns the root document containing this node (read-only)
ParentNode returns the parent node (read-only)
Parsed returns whether this node and its child nodes have been parsed (read-only)
Prefix return namespace prefix (read-only)
PRESERVEWHITESPACE specifies whether to preserve whitespace (readable and writable)
PreviousSibling returns the previous sibling node of this node (read-only)
Text returns the textual content of this node and its descendants (readable and writable)
URL returns the URL of the most recently loaded XML document (read-only)
XML returns the XML representation of the node and its descendants (read-only)



Method:

AppendChild adds a new child node to the current node, placed after the last child node
CloneNode returns a copy of the current node
CreateAttribute Creating a new property
Createcdatasection Creating a CDATA segment that includes a given data
Createcomment Create a comment node
Createdocumentfragment Creating DocumentFragment objects
CreateElement Creating an Element node
Createentityreference Creating EntityReference Objects
CreateNode Create a node of the given type, name, and namespace
Createporcessinginstruction Creating an action instruction node
createTextNode Creating a text node that includes the given data
getElementsByTagName returns the collection of elements for the specified name
HasChildNodes returns whether the current node has child nodes
InsertBefore inserting a child node before the specified node
Load import XML document at specified location
LoadXML an XML document that imports the specified string
RemoveChild Delete the specified child node from the child nodes list
ReplaceChild to replace the specified child node from the list of child nodes
Save saves the XML file to the specified node
SelectNodes a specified match to the node and returns a list of matching nodes
selectSingleNode a specified match to the node and returns the first matching node
Transformnode the node and its descendants using the specified style sheet
transformNodeToObject converts a node and its descendants using the specified style sheet

Instance gets the Label property. Value:

Me.xml

<?xml version= "1.0" encoding= "Utf-8"?> <phplamp> <post> <title id= "1" >php XML processing Introduction one </title > <details> Detail One </details> </post> <post> <title id= "2" >php XML processing Introduction two </title> <details> details two </details> </post> <post> <title id= "3" >php XML processing introduction three </title> < Details> details three </details> </post> </phplamp>

The first thing to do is to build a DOMDocument object $xml = new DOMDocument (); Load XML file $xml->load ("Me.xml"); Get all the post labels $postDom = $xml->getelementsbytagname ("post"); Loop through the Post label foreach ($postDom as $post) {//Get the title tag node $title = $post->getelementsbytagname ("title");/** * to get TITL The id attribute of the e tag is divided into two parts * 1. Gets a list of all the attributes in the title, which is $title->item (0)->attributes * 2. Gets the attribute of the ID in the title, because it is in the first place so with item (0) * Small hint: * If the value of the attribute can be used with item (*)->nodevalue * If the tag of the attribute can be used with item (*)->nodename * You can use the item (*)->nodetype */echo "ID:" If the type of the attribute is taken. $title->item (0)->attributes->item (0)->nodevalue. "<br/>"; echo "Title:". $title->item (0)->nodevalue. "<br/>"; echo "Details:". $post->getelementsbytagname ("Details")->item (0)->nodevalue. "<br/><br/>"; }

The following is the JS read XML file Code ajax+xml message

var xmldoc = new ActiveXObject ("Microsoft.XMLDOM"); Xmldoc.async = false; var old speech = "";  function Getxml () {try{xmldoc.load ("Word.xml"), if (xmldoc.documentelement! = null) {var new speak = Xmldoc.xml; if (new speak! = Old spoke) { Old speech = new statement; var allwords = xmldoc.selectnodes ("List/message"); New statement = "";  for (var i = 0;i < allwords.length;i++) {var array = allwords[i].text.split ("@"); var author = array [0]; if (author = = user name. value) {Author = "<font color= ' Turquoise ' >" + author + "</font>"; } else{Author = "<font color= ' Silver ' >" + author + "</font>";} var spoke = "<font color= ' Gold ' >" + array [1]+] </font > "; New Speeches + = "<div>" + author + "+ Speech +" </div> "+" <div style= ' text-align:right;font-size:9px; ' > "+allwords[i].getattribute (" author "). Substring (0,allwords[i].getattribute (" Author "). LastIndexOf (". ") +1) + "*" +allwords[i].getattribute ("time") + "</div>"; } words.innerhtml = new speech; Words.scrolltop = Words.scrollheight; }}} catch (e) {}} var read = false; function GetData () {if (! Read) {read = true; Getxml (); Read in= false; } setTimeout ("GetData ()", 3000); } getdata (); Submit.onclick = function () {submit.disabled = true; if (word.value! = "") {var xmlHttp = new ActiveXObject ("Microsoft.xmlh TTP "); Xmlhttp.open ("GET", "Save.php?name=" +encodeuricomponent (user name. Value) + "&word=" +encodeuricomponent (Word.value), true); Xmlhttp.setrequestheader ("Content-type", "text/html; Charset=utf-8"); Xmlhttp.send (NULL); Word.value = ""; if (in-read) {read = true; Getxml (); read = false;}} SetTimeout ("submit.disabled = false;", 3000); Word.focus (); }