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DOMAttr->__construct()> <scandir
Last updated: Wed, 22 Jul 2009

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DOM Functions

Introductie

The DOM extension allows you to operate on XML documents through the DOM API with PHP 5.

For PHP 4, use DOM XML.

Note: DOM extension uses UTF-8 encoding. Use utf8_encode() and utf8_decode() to work with texts in ISO-8859-1 encoding or Iconv for other encodings.

Installatie

Er zijn geen handelingen nodig m.b.t. tot installatie voor deze functies, deze maken deel uit van de kern van PHP.

Voorgedefinieerde klassen

The API of the module follows the » DOM Level 3 standard as closely as possible. Consequently, the API is fully object-oriented. It is a good idea to have the DOM standard available when using this module.

This module defines a number of classes, which are explained in the following tables. Classes with an equivalent in the DOM standard are named DOMxxx.

DOMAttr

Extends DOMNode. The DOMAttr interface represents an attribute in an DOMElement object.

Constructor

Methods

Properties

Name Type Read-only Description
name string yes The name of the attribute
ownerElement DOMElement yes The element which contains the attribute
schemaTypeInfo bool yes Not implemented yet, always return NULL
specified bool yes Not implemented yet, always return NULL
value string no The value of the attribute

DOMCharacterData

Extends DOMNode.

Methods

Properties

Name Type Read-only Description
data string no The contents of the node
length int yes The length of the contents

DOMComment

Extends DOMCharacterData.

Constructor

DOMDocument

Extends DOMNode.

Constructor

Methods

Properties

Name Type Read-only Description
actualEncoding string yes  
config DOMConfiguration yes  
doctype DOMDocumentType yes The Document Type Declaration associated with this document.
documentElement DOMElement yes This is a convenience attribute that allows direct access to the child node that is the document element of the document.
documentURI string no The location of the document or NULL if undefined.
encoding string no  
formatOutput bool no  
implementation DOMImplementation yes The DOMImplementation object that handles this document.
preserveWhiteSpace bool no Do not remove redundant white space. Default to TRUE.
recover bool no  
resolveExternals bool no Set it to TRUE to load external entities from a doctype declaration. This is useful for including character entities in your XML document.
standalone bool no  
strictErrorChecking bool no Throws DOMException on errors. Default to TRUE.
substituteEntities bool no  
validateOnParse bool no Loads and validates against the DTD. Default to FALSE.
version string no  
xmlEncoding string yes An attribute specifying, as part of the XML declaration, the encoding of this document. This is NULL when unspecified or when it is not known, such as when the Document was created in memory.
xmlStandalone bool no An attribute specifying, as part of the XML declaration, whether this document is standalone. This is FALSE when unspecified.
xmlVersion string no An attribute specifying, as part of the XML declaration, the version number of this document. If there is no declaration and if this document supports the "XML" feature, the value is "1.0".

DOMDocumentFragment

Extends DOMNode.

Methods

DOMDocumentType

Extends DOMNode

Each DOMDocument has a doctype attribute whose value is either NULL or a DOMDocumentType object.

Properties

Name Type Read-only Description
publicId string yes The public identifier of the external subset.
systemId string yes The system identifier of the external subset. This may be an absolute URI or not.
name string yes The name of DTD; i.e., the name immediately following the DOCTYPE keyword.
entities DOMNamedNodeMap yes A DOMNamedNodeMap containing the general entities, both external and internal, declared in the DTD.
notations DOMNamedNodeMap yes A DOMNamedNodeMap containing the notations declared in the DTD.
internalSubset string yes The internal subset as a string, or null if there is none. This is does not contain the delimiting square brackets.

DOMElement

Extends DOMNode.

Constructor

Methods

Properties

Name Type Read-only Description
schemaTypeInfo bool yes Not implemented yet, always return NULL
tagName string yes The element name

DOMEntity

Extends DOMNode

This interface represents a known entity, either parsed or unparsed, in an XML document.

Properties

Name Type Read-only Description
publicId string yes The public identifier associated with the entity if specified, and NULL otherwise.
systemId string yes The system identifier associated with the entity if specified, and NULL otherwise. This may be an absolute URI or not.
notationName string yes For unparsed entities, the name of the notation for the entity. For parsed entities, this is NULL.
actualEncoding string no An attribute specifying the encoding used for this entity at the time of parsing, when it is an external parsed entity. This is NULL if it an entity from the internal subset or if it is not known.
encoding string yes An attribute specifying, as part of the text declaration, the encoding of this entity, when it is an external parsed entity. This is NULL otherwise.
version string yes An attribute specifying, as part of the text declaration, the version number of this entity, when it is an external parsed entity. This is NULL otherwise.

DOMEntityReference

Extends DOMNode.

Constructor

DOMException

DOM operations raise exceptions under particular circumstances, i.e., when an operation is impossible to perform for logical reasons.

See also Exceptions.

Properties

Name Type Read-only Description
code int yes An integer indicating the type of error generated

DOMImplementation

The DOMImplementation interface provides a number of methods for performing operations that are independent of any particular instance of the document object model.

Constructor

Methods

DOMNamedNodeMap

Methods

DOMNode

Methods

Properties

Name Type Read-only Description
nodeName string yes Returns the most accurate name for the current node type
nodeValue string no The value of this node, depending on its type.
nodeType int yes Gets the type of the node. One of the predefined XML_xxx_NODE constants
parentNode DOMNode yes The parent of this node.
childNodes DOMNodeList yes A DOMNodeList that contains all children of this node. If there are no children, this is an empty DOMNodeList.
firstChild DOMNode yes The first child of this node. If there is no such node, this returns NULL.
lastChild DOMNode yes The last child of this node. If there is no such node, this returns NULL.
previousSibling DOMNode yes The node immediately preceding this node. If there is no such node, this returns NULL.
nextSibling DOMNode yes The node immediately following this node. If there is no such node, this returns NULL.
attributes DOMNamedNodeMap yes A DOMNamedNodeMap containing the attributes of this node (if it is a DOMElement) or NULL otherwise.
ownerDocument DOMDocument yes The DOMDocument object associated with this node.
namespaceURI string yes The namespace URI of this node, or NULL if it is unspecified.
prefix string no The namespace prefix of this node, or NULL if it is unspecified.
localName string yes Returns the local part of the qualified name of this node.
baseURI string yes The absolute base URI of this node or NULL if the implementation wasn't able to obtain an absolute URI.
textContent string no This attribute returns the text content of this node and its descendants.

DOMNodeList

Methods

Properties

Name Type Read-only Description
length int yes The number of nodes in the list. The range of valid child node indices is 0 to length - 1 inclusive.

DOMNotation

Extends DOMNode

Properties

Name Type Read-only Description
publicId string yes  
systemId string yes  

DOMProcessingInstruction

Extends DOMNode.

Constructor

Properties

Name Type Read-only Description
target string yes  
data string no  

DOMText

Extends DOMCharacterData.

Constructor

Methods

Properties

Name Type Read-only Description
wholeText string yes  

DOMXPath

Constructor

Methods

Properties

Name Type Read-only Description
document DOMDocument    

Voorbeelden

Many examples in this reference require an XML file. We will use book.xml that contains the following:

Example#1 book.xml

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
]>
<book id="listing">
 <title>My lists</title>
 <chapter id="books">
  <title>My books</title>
  <para>
   <informaltable>
    <tgroup cols="4">
     <thead>
      <row>
       <entry>Title</entry>
       <entry>Author</entry>
       <entry>Language</entry>
       <entry>ISBN</entry>
      </row>
     </thead>
     <tbody>
      <row>
       <entry>The Grapes of Wrath</entry>
       <entry>John Steinbeck</entry>
       <entry>en</entry>
       <entry>0140186409</entry>
      </row>
      <row>
       <entry>The Pearl</entry>
       <entry>John Steinbeck</entry>
       <entry>en</entry>
       <entry>014017737X</entry>
      </row>
      <row>
       <entry>Samarcande</entry>
       <entry>Amine Maalouf</entry>
       <entry>fr</entry>
       <entry>2253051209</entry>
      </row>
      <!-- TODO: I have a lot of remaining books to add.. -->
     </tbody>
    </tgroup>
   </informaltable>
  </para>
 </chapter>
</book>

Voorgedefinieerde constanten

Deze constanten worden gedefinieerd door deze extensie, en zullen alleen beschikbaar zijn als de extensie met PHP is meegecompileerd, of als deze dynamisch is geladen vanuit een script.

XML constants
Constant Value Description
XML_ELEMENT_NODE (integer) 1 Node is a DOMElement
XML_ATTRIBUTE_NODE (integer) 2 Node is a DOMAttr
XML_TEXT_NODE (integer) 3 Node is a DOMText
XML_CDATA_SECTION_NODE (integer) 4 Node is a DOMCharacterData
XML_ENTITY_REF_NODE (integer) 5 Node is a DOMEntityReference
XML_ENTITY_NODE (integer) 6 Node is a DOMEntity
XML_PI_NODE (integer) 7 Node is a DOMProcessingInstruction
XML_COMMENT_NODE (integer) 8 Node is a DOMComment
XML_DOCUMENT_NODE (integer) 9 Node is a DOMDocument
XML_DOCUMENT_TYPE_NODE (integer) 10 Node is a DOMDocumentType
XML_DOCUMENT_FRAG_NODE (integer) 11 Node is a DOMDocumentFragment
XML_NOTATION_NODE (integer) 12 Node is a DOMNotation
XML_HTML_DOCUMENT_NODE (integer) 13  
XML_DTD_NODE (integer) 14  
XML_ELEMENT_DECL_NODE (integer) 15  
XML_ATTRIBUTE_DECL_NODE (integer) 16  
XML_ENTITY_DECL_NODE (integer) 17  
XML_NAMESPACE_DECL_NODE (integer) 18  
XML_ATTRIBUTE_CDATA (integer) 1  
XML_ATTRIBUTE_ID (integer) 2  
XML_ATTRIBUTE_IDREF (integer) 3  
XML_ATTRIBUTE_IDREFS (integer) 4  
XML_ATTRIBUTE_ENTITY (integer) 5  
XML_ATTRIBUTE_NMTOKEN (integer) 7  
XML_ATTRIBUTE_NMTOKENS (integer) 8  
XML_ATTRIBUTE_ENUMERATION (integer) 9  
XML_ATTRIBUTE_NOTATION (integer) 10  
DOMException constants
Constant Value Description
DOM_INDEX_SIZE_ERR (integer) 1 If index or size is negative, or greater than the allowed value.
DOMSTRING_SIZE_ERR (integer) 2 If the specified range of text does not fit into a DOMString.
DOM_HIERARCHY_REQUEST_ERR (integer) 3 If any node is inserted somewhere it doesn't belong
DOM_WRONG_DOCUMENT_ERR (integer) 4 If a node is used in a different document than the one that created it.
DOM_INVALID_CHARACTER_ERR (integer) 5 If an invalid or illegal character is specified, such as in a name.
DOM_NO_DATA_ALLOWED_ERR (integer) 6 If data is specified for a node which does not support data.
DOM_NO_MODIFICATION_ALLOWED_ERR (integer) 7 If an attempt is made to modify an object where modifications are not allowed.
DOM_NOT_FOUND_ERR (integer) 8 If an attempt is made to reference a node in a context where it does not exist.
DOM_NOT_SUPPORTED_ERR (integer) 9 If the implementation does not support the requested type of object or operation.
DOM_INUSE_ATTRIBUTE_ERR (integer) 10 If an attempt is made to add an attribute that is already in use elsewhere.
DOM_INVALID_STATE_ERR (integer) 11 If an attempt is made to use an object that is not, or is no longer, usable.
DOM_SYNTAX_ERR (integer) 12 If an invalid or illegal string is specified.
DOM_INVALID_MODIFICATION_ERR (integer) 13 If an attempt is made to modify the type of the underlying object.
DOM_NAMESPACE_ERR (integer) 14 If an attempt is made to create or change an object in a way which is incorrect with regard to namespaces.
DOM_INVALID_ACCESS_ERR (integer) 15 If a parameter or an operation is not supported by the underlying object.
DOM_VALIDATION_ERR (integer) 16 If a call to a method such as insertBefore or removeChild would make the Node invalid with respect to "partial validity", this exception would be raised and the operation would not be done.

Table of Contents



DOMAttr->__construct()> <scandir
Last updated: Wed, 22 Jul 2009
 
add a note add a note User Contributed Notes
DOM
Sven Arduwie
17-Mar-2008 03:28
I needed a function that quickly converts an xml with key/value pairs to an array.

for example:
<?xml version="1.0" encoding="UTF-8"?>
<test>
    <key id="Array key #1" value="Value #1"/>
    <key id="Array key #2" value="Value #2"/>
    <key id="Dupe" value="Duplicate keys"/>
    <key id="Dupe" value="create numeric arrays"/>
    <key id="And another key">
        <![CDATA[
            Multiline
            data
            works
            just
            as
            well.
        ]]>
    </key>
    <nested>
        <key id="Nested key" value="Nested data works as well, but it still results in a 1 dimensional array."/>
    </nested>
</test>

Results in the following array:
array(5) {
  ["Array key #1"]=>
  string(8) "Value #1"
  ["Array key #2"]=>
  string(8) "Value #2"
  ["Dupe"]=>
  array(2) {
    [0]=>
    string(14) "Duplicate keys"
    [1]=>
    string(21) "create numeric arrays"
  }
  ["And another key"]=>
  string(49) "Multiline
            data
            works
            just
            as
            well."
  ["Nested key"]=>
  string(73) "Nested data works as well, but it still results in a 1 dimensional array."
}

Here's the code:
<?php
    function xml2array($xml) {
        $domDocument = new DOMDocument;
        $domDocument->loadXML($xml);
        $domXPath = new DOMXPath($domDocument);
        $array = array();
        foreach ($domXPath->query('//key') as $keyDOM) {
            $id = $keyDOM->getAttribute('id');
            $value = $keyDOM->hasAttribute('value') ? $keyDOM->getAttribute('value') : trim($keyDOM->textContent);
            if (array_key_exists($id, $array)) {
                if (is_array($array[$id])) {
                    $array[$id][] = $value;
                } else {
                    $array[$id] = array($array[$id]);
                    $array[$id][] = $value;
                }
            } else {
                $array[$id] = $value;
            }
        }
        return $array;
    }
?>
danf dot 1979 at []gmail[] dot com
24-Feb-2008 04:47
This is a couple of classes to deal with yahoo yui menu.

/*
  $menubar = new MenuBar();

  $file = new Menu("File");
  $file->setAttribute("href", "http://file.com");

  $quit = new Menu("Quit");
  $quit->setAttribute("href", "http://quit.com");

  $file->appendChild($quit);
  $menubar->appendChild($file);

  echo $menubar->grab();
*/

//
// Author: Daniel Queirolo.
// LGPL
//

/** ---------------------------------
/**  Class MenuBar()
/**  Creates a the menubar and appends
/**  yuimenubaritems to it.
/** ---------------------------------*/

class MenuBar extends DOMDocument
{

  public $menuID = "nav_menu";  // holds the css id that javascript yui menu code should have to recognize
  private $UL;                  // This node holds every menu, This is THE node.

  /** ---------------------------------
  /**  Constructor
  /**  Generates a menubar skeleton and the UL node
  /** ---------------------------------*/

  public function __construct() {

    parent::__construct();

    $rootdiv = parent::createElement("div");
    $rootdiv->setAttribute("class", "yui-skin-sam");

    parent::appendChild($rootdiv);

    $yui_menubar = parent::createElement("div");
    $yui_menubar->setAttribute("id", $this->menuID);
    $yui_menubar->setAttribute("class", "yuimenubar");

    $rootdiv->appendChild($yui_menubar);

    $bd = parent::createElement("div");
    $bd->setAttribute("class", "bd");

    $yui_menubar->appendChild($bd);

    $ul = parent::createElement("ul");
    $ul->setAttribute("class", "first-of-type");

    // ALL Menu() instances ocurr inside an <ul> tag.

    $this->UL = $bd->appendChild($ul);

  }

  /** ---------------------------------
  /**  appendChild()
  /**  Appends a new yuimenubaritem to the menubar UL node.
  /**  This function changes <li> and <a> classes to yuiMENUBARsomething
  /** ---------------------------------*/

  public function appendChild($child) {

    $li = parent::importNode($child->LI, true);

    $li->setAttribute("class", "yuimenubaritem");

    $li->getElementsByTagName("a")->item(0)->setAttribute("class", "yuimenubaritemlabel");

    $this->UL->appendChild($li);

  }

  public function grab() {

    return parent::saveHTML();

  }

}

/** ---------------------------------
/**  Class Menu()
/**  Creates a yuimenuitem li node
/** ---------------------------------*/

class Menu extends DOMDocument {

  public $LI; // stores the <li> node (THE link) that will be exported to MenuBar() or used on appendChild()

  /** ---------------------------------
  /**  Constructor
  /**  Generates a yuimenuitem li node
  /**  No yuimenubar items are created here. MenuBar handles that.
  /** ---------------------------------*/

  public function __construct($link_name) {

    parent::__construct();

    $li = parent::createElement("li");
    $li->setAttribute("class", "yuimenuitem");

    // LI node stores THE link.
    // if appendChild is used, the new (sub) Menu() would be LI node child.

    $this->LI = parent::appendChild($li);

    $a = parent::createElement("a", $link_name);
    $a->setAttribute("class", "yuimenuitemlabel");

    $li->appendChild($a);

    $this->li = $li;
    $this->a = $a;

  }

  /** ---------------------------------
  /**  appendChild
  /**  Appends a (sub) Menu() to current Menu() in LI
  /** ---------------------------------*/

  public function appendChild($child) {

    $yuimenu = parent::createElement("div");
    $yuimenu->setAttribute("class", "yuimenu");

    $this->LI->appendChild($yuimenu);

    $bd = parent::createElement("div");
    $bd->setAttribute("class", "bd");

    $yuimenu->appendChild($bd);

    $ul = parent::createElement("ul");

    $bd->appendChild($ul);

    // child->NODE holds THE link from the new child (from child's __construct())

    $ul->appendChild(parent::importNode($child->LI, true));

  }

  public function setAttribute($name, $value, $node="a") {

      if ($node == "a") {
        $this->a->setAttribute($name, $value);
      }

      else {
        $this->li->setAttribute($name, $value);
      }
  }

}
ptichy at pobox dot sk
09-Feb-2008 11:40
How to get contents of node with all tags by PHP Dom:
<?php
// XML data
$xml_string = "<?xml version='1.0' ?>
<sentence>
How to get contents of node with all tags by PHP Dom: <br/>
<b>cabbages</b>, <i>tomatoes</i>,
  <i>apples</i>, <font  color='purple'>aubergines</font>
<ol>
   <li> row 1</li>
   <li> row 2 </li>
   <li> row 3 </li>
 </ol>
 <table border = '1'>
  <tbody>
    <tr>
      <td>I am best</td>
    </tr>
    <tr>
      <td>Programmer</td>
    </tr>
  </tbody>
</table>
You see my projects at:
<strong><a href='http://www.itdeveloping.eu' >www.itdeveloping.eu</a></strong>
</sentence>";

// parse it
$doc= new DOMDocument();
if (!$doc->loadXML($xml_string))
{
   echo ("Error in XML document");
}

$nody = $doc->getElementsByTagName('sentence'); // gets NodeList

$nod=$nody->item(0);//Node
getContent($Content,$nod);
echo $Content;

function getContent(&$NodeContent="",$nod)
{    $NodList=$nod->childNodes;
    for( $j=0 ;  $j < $NodList->length; $j++ )
    {       $nod2=$NodList->item($j);//Node j
        $nodemane=$nod2->nodeName;
        $nodevalue=$nod2->nodeValue;
        if($nod2->nodeType == XML_TEXT_NODE)
            $NodeContent .=  $nodevalue;
        else
        {     $NodeContent .= "<$nodemane ";
           $attAre=$nod2->attributes;
           foreach ($attAre as $value)
              $NodeContent .="{$value->nodeName}='{$value->nodeValue}'" ;
            $NodeContent .=">";                    
            getContent($NodeContent,$nod2);                    
            $NodeContent .= "</$nodemane>";
        }
    }
   
}
?>
Anonymous
30-Jan-2008 08:37
In response to...
"If you create your own custom element extending DOMElement and append him in place of the document element, you cannot access to any new members newly defined in your custom class via DOMDocument::$documentElement."

... it is not a bug, it is a feature. The DOMDocument::$documentElement property name may be misleading but according to the DOM Level 2 Core specification it is a convenience attribute meant to access the root element of your DOMDocument. See here: http://www.w3.org/TR/DOM-Level-2-Core/core.html#i-Document
ryoroxdahouse at hotmail dot com
25-Jan-2008 09:14
I use DOM to generate dynamically XHTML document.

When trying to extend the DOMDocument and DOMElement classes, I found a very annoying bug concerning DOMDocument::$documentElement.

If you create your own custom element extending DOMElement and append him in place of the document element, you cannot access to any new members newly defined in your custom class via DOMDocument::$documentElement.

In my situation, I cannot use DOMDocument::registerNodeClass() because the document element is not necessarily the base class for all the elements in my document.

*******
problem
*******

See bellow for the repro step:

<?php
    class MyElement extends DOMElement{
        public $myProp="myProp";
        public function myMethod(){
            return 'myMethod()';
        }
    }
   
    $myDocument=new DOMDocument();
    $myDocument->appendChild(new MyElement('myElement','myElement'));
    echo ('$myElement->myProp :'.$myDocument->documentElement->myProp.'<br />');
    echo ('$myElement->myMethod :'.$myDocument->documentElement->myMethod().'<br />');
?>

will output:

Notice: Undefined property: DOMElement::$myProp in C:\Program Files\EasyPHP 2.0b1\www\testDOMBug\test2.php on line 11
$myElement->myProp :

Fatal error: Call to undefined method DOMElement::myMethod() in C:\Program Files\EasyPHP 2.0b1\www\testDOMBug\test2.php on line 12

*******
solution
*******

After searching around, I found a pretty odd way to fix this problem. It seems that you have to stock a reference to your appended document element in an user-defined (and persistent) variable (in other words, not only in DOMDocument::$documentElement). See below:

<?php   
    class MyElement extends DOMElement{
        public $myProp="myProp";
        public function myMethod(){
            return 'myMethod()';
        }
    }
   
    $myDocument=new DOMDocument();
    $mydocumentElement=$myDocument->appendChild(new MyElement('myElement','myElement')); //here is the hack
    echo ('$myElement->myProp :'.$myDocument->documentElement->myProp.'<br />');
    echo ('$myElement->myMethod :'.$myDocument->documentElement->myMethod().'<br />');
?>

will output:

$myElement->myProp :myProp
$myElement->myMethod :myMethod()

Hope it will help.
moshedolev at gmail dot com
08-Jan-2008 07:15
I developed a group of functions that make it very easy to extract any information you want from any page you load from the internet. All based on the DOMDocument object.
You can read the entire documentation and download the source code here:
http://www.tintetoner-shop.de/DomUtilities/

Enjoy !!
naudyj at aus3d.com
04-Jan-2008 02:06
The following can take a XML_TEXT_NODE node and return the contents in an array. Yanick's contribution rocks - but
it overwrote with duplicates only keeping the last line
in the returned array. All the other functions i tested from various sources failed to handle text nodes correctly. Hope this helps someone. It is adapted from code on this site.

function myTextNode($n, &$a)
{
 static $depth = 0;
 static $sz = '';

 if ($cn = $n->firstChild)
 {
  while ($cn)
  {
   if ($cn->nodeType == XML_TEXT_NODE)
   {
    $sz .= $cn->nodeValue;
   }
   elseif ($cn->nodeType == XML_ELEMENT_NODE)
   {
    $b = 1;
    if ($cn->hasChildNodes())
    {
     $depth++;
     if ($this->myHeadings($cn, $a))
     {
      if ($sz){
       array_push($a, $sz);
       $sz = '';
      }
     }
     $depth--;
    }
   }
   $cn = $cn->nextSibling;
  }
  return $b;
 }
}

so you could use:  

$nodes = $dom->getElementsByTagName("td");
if($nodes){
 foreach ($nodes as $node){
  $a = Array();
  myTextNode($node, $a);
 }
}
Joe dot Cattlet at msn dot com
13-Nov-2007 03:56
In response to TrollBoy:

You might want to look a little harder before you go and write new code, someone posted a function that does exactly what your class does about a week before you. Also their function allows you to seed the document with a root so it could technically work for HTML documents as well.
trollboy at shoggoth dot net
13-Nov-2007 12:12
I wrote a simple class to turn an associative array into xml, as this seems like something fairly simple, but nothing out there does it that I know of.  That said,  enjoy.

<?php

    /**
     * basic class for converting an array to xml.
     * @author Matt Wiseman (trollboy at shoggoth.net)
     *
     */
    class array2xml {
       
        public $data;
        public $dom_tree;
       
        /**
         * basic constructor
         *
         * @param array $array
         */
        public  function __construct($array){
            if(!is_array($array)){
                throw new Exception('array2xml requires an array', 1);
                unset($this);
            }
            if(!count($array)){
                throw new Exception('array is empty', 2);
                unset($this);
            }
           
            $this->data = new DOMDocument('1.0');
           
            $this->dom_tree = $this->data->createElement('result');
            $this->data->appendChild($this->dom_tree);
            $this->recurse_node($array, $this->dom_tree);
        }
       
        /**
         * recurse a nested array and return dom back
         *
         * @param array $data
         * @param dom element $obj
         */
        private function recurse_node($data, $obj){
            $i = 0;
            foreach($data as $key=>$value){
                if(is_array($value)){
                    //recurse if neccisary
                    $sub_obj[$i] = $this->data->createElement($key);
                    $obj->appendChild($sub_obj[$i]);
                    $this->recurse_node($value, $sub_obj[$i]);
                } elseif(is_object($value)) {
                    //no object support so just say what it is
                    $sub_obj[$i] = $this->data->createElement($key, 'Object: "' . $key . '" type: "'  . get_class($value) . '"');
                    $obj->appendChild($sub_obj[$i]);
                } else {
                    //straight up data, no weirdness
                    $sub_obj[$i] = $this->data->createElement($key, $value);
                    $obj->appendChild($sub_obj[$i]);
                }
                $i++;
            }
        }
       
        /**
         * get the finished xml
         *
         * @return string
         */
        public function saveXML(){
            return $this->data->saveXML();
        }
    }
   
      
    $test = array(
        'cat'=>'animal',
        'container'=> array(
            'thing'=>'stuff',
            'thing2'=>'stuff2',
            'thing3'=>3,
            'thing4'=>4,
            'wtf'=> new stdClass(),
        ),
        'foo'=>'bar',
    );
   
    var_dump($test);
    try {
    $o_test = new array2xml($test);
    } catch (Exception $e) {
        echo $e->getMessage();
    }
    echo $o_test->saveXML();
    ?>
jim.filter (at gmail.com)
03-Nov-2007 04:42
Array to DOM

Here is a recursive function to turn a multidimensional array into an XML document.  It will handle multiple elements of the same tag, but only one per parent element. IE:

Can't generate:         Can generate:
<root>                  <root>
  <sub1>data1</sub1>      <subs1>
  <sub1>data2</sub1>         <value>data1</value>
  <sub2>data1</sub2>         <value>data2</value>
  <sub2>data2</sub2>      </subs1>
</root>                   <subs2>
                            <value>data1</value>
                            <value>data2</value>
                          <subs2>
                        </root>

Also, the function performs no type of error checking on your array and will throw a DOMException if a key value you used in your array contains invalid characters for a proper DOM tag. This function is untested for "deep" multidimensional arrays.

Complete code ready to run with example:

<?PHP
  function AtoX($array, $DOM=null, $root=null){
   
    if($DOM  == null){$DOM  = new DOMDocument('1.0', 'iso-8859-1');}
    if($root == null){$root = $DOM->appendChild($DOM->createElement('root'));}
   
    $name = $array['#MULTIPLE_ELEMENT_NAME'];

      foreach($array as $key => $value){   
        if(is_int($key) && $name != null){
          if(is_array($value)){
            $subroot = $root->appendChild($DOM->createElement($name));
            AtoX($value, $DOM, $subroot);
          }
          else if(is_scalar($value)){
            $root->appendChild($DOM->createElement($name, $value));
          }
        }
        else if(is_string($key) && $key != '#MULTIPLE_ELEMENT_NAME'){
          if(is_array($value)){
            $subroot = $root->appendChild($DOM->createElement($key));
            AtoX($value, $DOM, $subroot);
          }
          else if(is_scalar($value)){
            $root->appendChild($DOM->createElement($key, $value));
          }
        }
      }
    return $DOM; 
  }
 
  $array = array(
                    '#MULTIPLE_ELEMENT_NAME' => 'GenericDatas',
                    'Date'      => 'November 03, 2007',
                    'Company'   => 'Facility One',
                    'Field'     => 'Facility Management Software',
                    'Employees' => array(
                                      '#MULTIPLE_ELEMENT_NAME' => 'Employee',
                                      'Cindy',
                                      'Sean',
                                      'Joe',
                                      'Owen',
                                      'Jim',
                                      'Dale',
                                      'Kelly',
                                      'Ryan',
                                      'Johnathan',
                                      'Robin',
                                      'William Marcus',
                                      'NewCoops' => array(
                                                          '#MULTIPLE_ELEMENT_NAME' => 'Coop',
                                                          'John',
                                                          'Tyler',
                                                          'Ray',
                                                          'Dawn'
                                                         )    
                                    ),
                    'Datas',
                    'DATAS',
                    'OtherDatas'
                );
 
  $DOM  = new DOMDocument('1.0', 'iso-8859-1');
  $root = $DOM->appendChild($DOM->createElement('CompanyData'));
  $DOM  = AtoX($array, $DOM, $root);
  $DOM->save('C:\test.xml');
?>
freyjkell at gmail dot com
02-Nov-2007 07:02
In order to REALLY well handle XHTML entities with DOM, you can do following things:

1. Add this DOCTYPE to your documents
<!DOCTYPE xhtmlentities PUBLIC "-//W3C//ENTITIES XHTML Character Entities 1.0//EN" "/xhtml11.ent">

2. Copy http://freyjkell.ovh.org/xhtml11.ent into your document root.

3. In your PHP:
<?php
$dom=new DOMDocument();
$dom->load('file.xhtml',LIBXML_DTDLOAD); // NOT resolveExternals - it needs true doctype, and includes crap code
// some DOM operations
$doctype=DOMImplementation::createDocumentType("html","-//W3C//DTD XHTML 1.1//EN","http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"); // creating real doctype
$output=DOMImplementation::createDocument('','',$doctype);
$output->appendChild($output->importNode($dom->documentElement,true));
$output->encoding='utf-8';
$output=$output->saveXML();
$xhtml=preg_match(
    '/application\/xhtml\+xml(?![+a-z])'.
    '(;q=(0\.\d{1,3}|[01]))?/i',
    $_SERVER['HTTP_ACCEPT'],$xhtml) &&
    (isset($xhtml[2])?$xhtml[2]:1) > 0 ||
    strpos($_SERVER["HTTP_USER_AGENT"],
    "W3C_Validator")!==false ||
    strpos($_SERVER["HTTP_USER_AGENT"],
    "WebKit")!==false; // XHTML Content-Negotiation
header('Content-Type: '.($xhtml?'application/xhtml+xml':'text/html').'; charset=utf-8');
print $output;
?>
PHPdeveloper
06-Sep-2007 11:46
The Yanik's dom2array() function (added on 14-Mar-2007 08:40) does not handle multiple nodes with the same name, i.e.:

<foo>
  <name>aa</name>
  <name>bb</name>
</foo>

It will overwrite former and your array will contain just the last one ("bb")
Francois Hill
01-Aug-2007 08:21
In response to lutfi at smartconsultant dot us :

(see my post on
http://fr2.php.net/manual/en/
function.dom-domdocument-getelementsbytagname.php
)

Use this class I wrote:

class XPathableNode extends DOMNode
{
    protected $Node;
    protected $DOMDocument_from_node;
    protected $DOMXpath_for_node;

    public function __construct(/* DOMNode */ $node)
    {
        $this->Node=$node;
        $this->DOMDocument_from_node=new
                                                          DomDocument();
        $domNode=$this->DOMDocument_from_node
                                  ->importNode($this->Node, true);
        $this->DOMDocument_from_node
                                 ->appendChild($domNode);
        $this->DomXpath_for_node =
                    new Domxpath($this->
                                         DOMDocument_from_node);
    }

    public function convertHTML()
    {    return $this->DOMDocument_from_node
                                                             ->saveHTML();
    }

    public /*DomNodeList*/ function applyXpath($xpath)
    {    return $this->DomXpath_for_node
                                                       ->query($xpath);
    }
}

(sorry for the display... What a terrible hinderance on the
part of php.net !)

Then :
Make a new XPathableNode out of your parent node.
You may then retrieve a DOMNodeList from it by applying a
xpath (thus being able to specify the depth  and name of
elements you want).

Has got me around some (of the many) DOM awkwardnesses a few times.

;o)
lpetrov AT axisvista.com
21-Jul-2007 02:41
Basicly there are alot of problems on dynamic namespaces registering and other maybe 'not well' documented parts of DOM.

Here is an article covering some of the problems that our company web developers found while we were developing a template engine for our new framework.

The link:
http://blog.axisvista.com/?p=35
lutfi at smartconsultant dot us
20-Jul-2007 06:06
i have some problem parsing recurred xml tree here:

<menu name='parent1' >
  <submenu name='file' >
     <submenu name='open' >Open file</submenu>
     <submenu name='close' >Close file</submenu>
  </submenu>
  <submenu name='edit' >
     <submenu name='cut' >Cut Clipboards</submenu>
     <submenu name='copy' >Copy Clipboards</submenu>
     <submenu name='paste' >Paste Clipboards</submenu>
  </submenu>
</menu>

with getElementsByTagName all submenu is on the same level.
i want it to be structured like tree list, but not change the 'submenu' tag
Sanados at failure dot at
05-Jun-2007 11:45
appended to
brian dot reynolds at risaris dot com
20-Feb-2007 10:09

when you got variable nodes at start you array fails and looses nodes  beneath.
solution that counts occurance though eats up performance:

function xmlToArray($n)
{
    $xml_array = array();
    $occurance = array();

     foreach($n->childNodes as $nc)
     {
         $occurance[$nc->nodeName]++;
     }
    
    foreach($n->childNodes as $nc){
        if( $nc->hasChildNodes() )
        {
            if($occurance[$nc->nodeName] > 1)
            {
                $xml_array[$nc->nodeName][] = xmlToArray($nc);
            }
            else
            {
                $xml_array[$nc->nodeName] = xmlToArray($nc);
            }
        }
        else
        {
            return utf8_decode($nc->nodeValue);
        }
    }
    return $xml_array;
}
Yanik <clonyara(at)ahoo(dot)com>
14-Mar-2007 08:40
I hate DOM model !
so I wrote dom2array simple function (simple for use):

function dom2array($node) {
  $res = array();
  print $node->nodeType.'<br/>';
  if($node->nodeType == XML_TEXT_NODE){
      $res = $node->nodeValue;
  }
  else{
      if($node->hasAttributes()){
          $attributes = $node->attributes;
          if(!is_null($attributes)){
              $res['@attributes'] = array();
              foreach ($attributes as $index=>$attr) {
                  $res['@attributes'][$attr->name] = $attr->value;
              }
          }
      }
      if($node->hasChildNodes()){
          $children = $node->childNodes;
          for($i=0;$i<$children->length;$i++){
              $child = $children->item($i);
              $res[$child->nodeName] = dom2array($child);
          }
      }
  }
  return $res;
}
Nevyn at N dot O dot S dot P dot A dot M dot emai dot it
10-Mar-2007 04:35
I wrote a couple of functions to:
 - create a DOMDocument from a file
 - parse the namespaces in it
 - create a XPath object with all the namespaces registered
 - load the schemalocations
 - validate the file on the main schema (the one without prefix)

It is useful for me, see if it is also for someone else!!

Giulio

function decodeNode($node)
{
    $out = $node->ownerDocument->saveXML($node);
    $re = "{^<((?:\\w*:)?\\w*)". //the tag name
    "[\\s\n\r]*((?:[\\s\n\r]*".
    "(?:\\w*:)?\\w+[\\s\n\r]*=[\\s\n\r]*". //possible attribute name
    "(?:\"[^\"]*\"|\'[^\']*\'))*)". //attribute value
    "[\\s\n\r]*>[\r\n]*".
    "((?:.*[\r\n]*)*)". //content
    "[\r\n]*</\\1>$}"; //closing tag
    preg_match($re, $out, $mat);
    return $mat;
}

function innerXml($node)
{
    $mat = decodeNode($node);
    return $mat[3];
}

function getnodeAttributes($node)
{
    $mat = decodeNode($node);
    $txt = $mat[2];
    $re = "{((?:\\w*:)?\\w+)[\\s\n\r]*=[\\s\n\r]*(\"[^\"]*\"|\'[^\']*\')}";
    preg_match_all($re, $txt, $mat);
    $att = array();
    for ($i=0; $i<count($mat[0]); $i++)
    {
        $value = $mat[2][$i];
        if ($value[0] == "\'" || $value[0] == "\"")
        {
            $len = strlen($value);
            $value = substr($value, 1, strlen($value)-2);
        }
        $att[ $mat[1][$i] ] = $value;
    }
    return $att;
}

function loadXml($file)
{
    $doc = new DOMDocument();
    $doc->load($file);
    //cerca l'attributo xmlns
    $xsi = false;
    $doc->namespaces = array();
    $doc->xpath = new DOMXPath($doc);
   
    $attr = getnodeAttributes($doc->documentElement);
    foreach ($attr as $name => $value)
    {
        if (substr($name,0,5) == "xmlns")
        {
            $uri = $value;
            $pre = $doc->documentElement->lookupPrefix($uri);
            if ($uri == "http://www.w3.org/2001/XMLSchema-instance")
                $xsi = $pre;
            $doc->namespaces[$pre] = $uri;
            if ($pre == "")
                $pre = "noname";
            $doc->xpath->registerNamespace($pre, $uri);
        }
    }
   
    if ($xsi)
    {
        $doc->schemaLocations = array();
        $lst = $doc->xpath->query("//@$xsi:schemaLocation");
        foreach($lst as $el)
        {
            $re = "{[\\s\n\r]*([^\\s\n\r]+)[\\s\n\r]*([^\\s\n\r]+)}";
            preg_match_all($re, $el->nodeValue, $mat);
            for ($i=0; $i<count($mat[0]); $i++)
            {
                $value = $mat[2][$i];
                $doc->schemaLocations[ $mat[1][$i] ] = $value;
            }
        }

        $olddir = getcwd();
        chdir(dirname($file));
        $schema = $doc->schemaLocations[$doc->namespaces[""]];
        if (substr($schema,0,7) == "file://")
        {
            $schema = substr($value,7);
        }
        if (!$doc->schemaValidate($schema))
            dbg()->err("Invalid file");
        chdir($olddir);
    }
   
    return $doc;
}
brian dot reynolds at risaris dot com
20-Feb-2007 10:09
I found the xml2array function below very useful, but there seems to be a bug in it. The $item variable was never getting set. I've expanded this out to be a bit more readable, and the corrected code is :

function xmlToArray($n)
{
    $return=array();

    foreach($n->childNodes as $nc){
        if( $nc->hasChildNodes() ){
            if( $n->firstChild->nodeName== $n->lastChild->nodeName&&$n->childNodes->length>1){
                $item = $n->firstChild;
                $return[$nc->nodeName][]=$this->xmlToArray($item);
            }
            else{
                 $return[$nc->nodeName]=$this->xmlToArray($nc);
            }
       }
       else{
           $return=$nc->nodeValue;
       }
    }
    return $return;
}
cooper at asu dot ntu-kpi dot kiev dot ua
22-Nov-2006 11:32
If you are using not object-oriented functions and it takes too much time to change them all (or you'll be replacing them later) then as a temporary decision can be used this modules:

For DOM XML:
http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/

For XSLT:
http://alexandre.alapetite.net/doc-alex/xslt-php4-php5/
cormac at idreamproducts dot com
17-Oct-2006 12:48
Most email clients ignore stylesheets in HTML formatted emails.  The best way to ensure your HTML is formatted correctly by a broad spectrum of email clients, including webmail implementations as Gmail, is to use inline style attributes.  The following function uses DOM to parse an inline stylesheet, and will replace element class and id attributes with inline style attributes, and add inline style attributes for generic tag stylesheet rules.  It will remove the stylesheet and any used class and id attributes as these are defunct for most email clients.  It is a fairly lightweight function and does not support CSS inheritance, but will work for simple stylesheets e.g.:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>HTML EMAIL</title>
<style type="text/css">
body {
  margin: 10px 10px;
  font: 8pt arial;
  background: #fff;
  color: #000;
}
p {
  margin: 0 0 10px;
  line-height: 1.2em;
  text-align: justify;
}
p.centered {
  text-align: centre;
}
p#right {
  text-align: right;
}
</style>
</head>
<body>
<p>Sample text justified</p>
<p class="centered">Centered text here</p>
<p id="right">Right-aligned text</p>
</body>
</html>

Here's the function:

<?php
function parseStyleSheetfor Email($html)
{
  $doc = new DOMDocument;
  $doc->loadHTML($html);
  // grab inline stylesheet as DOM object
  $oStyle = $doc->getElementsByTagName('style')->item(0);
  // grab rule identifiers and rules
  preg_match_all('/^([-#._a-z0-9]+) ?\{(.*?)\}/ims', $oStyle->nodeValue, $aMatches, PREG_SET_ORDER);
  foreach ($aMatches as $aRule) {
    $rule_id = $aRule[1];
    // clean up rules
    $rule = str_replace(array("\r", "\n", '  ', '; '), array('', '', ' ', ';'), $aRule[2]);
    $rule = preg_replace(array('/^ /', '/;$/'), '', $rule);
    // generic rules
    if (!strstr($rule_id, '.') && !strstr($rule_id, '#')) {
      $items = $doc->getElementsByTagName($rule_id);
      // set style attribute equal to rule from stylesheet
      foreach ($items as $item) {
        // if there is already inline style append it to end of stylesheet rule
        $current_style = $item->getAttribute('style');
        if (!empty($current_style)) {
          $item->setAttribute('style', $rule . ';' . $current_style);
        } else {
          $item->setAttribute('style', $rule);
        }
      }
    // classes
    } elseif (strstr($rule_id, '.')) {
      list($rule_tag, $rule_class) = explode('.', $rule_id);
      $items = $doc->getElementsByTagName($rule_tag);
      foreach ($items as $item) {
        $class = $item->getAttribute('class');
        if ($class == $rule_class) {
          // if there is already inline style append it to end of stylesheet rule
          $current_style = $item->getAttribute('style');
          if (!empty($current_style)) {
            $item->setAttribute('style', $current_style . ';' . $rule);
          } else {
            $item->setAttribute('style', $rule);
          }
          // remove class as it won't be used now
          $item->removeAttribute('class');
        }
      }
    // ids
    } elseif (strstr($rule_id, '#')) {
      list($rule_tag, $id) = explode('#', $rule_id);
      $item = $doc->getElementById($id);
      $current_style = $item->getAttribute('style');
      if (!empty($current_style)) {
        $item->setAttribute('style', $current_style . ';' . $rule);
      } else {
        $item->setAttribute('style', $rule);
      }
      // remove class as it won't be used now
      $item->removeAttribute('id');
    }
  }
  // remove inline stylesheet
  $oStyle->parentNode->removeChild($oStyle);
  return $doc->saveHTML();
}
?>
sean at lookin3d dot com
17-Aug-2006 07:21
$xmlDoc=<<<XML
<?xml version="1.0"?>
<methodCall>
   <methodName>examples.getStateName</methodName>
   <params>
      <param>
         <value><i4>41</i4></value>
         </param>
      </params>
   </methodCall>
XML;

$xml= new DOMDocument();
$xml->preserveWhiteSpace=false;
$xml->loadXML($xmlDoc);
print_r(xml2array($xml));

function xml2array($n)
{
    $return=array();
    foreach($n->childNodes as $nc)
    ($nc->hasChildNodes())
    ?($n->firstChild->nodeName== $n->lastChild->nodeName&&$n->childNodes->length>1)
    ?$return[$nc->nodeName][]=xml2array($item)
    :$return[$nc->nodeName]=xml2array($nc)
    :$return=$nc->nodeValue;
    return $return;
}
massimo dot scamarcia at gmail dot com
20-Feb-2006 11:56
If you're moving from PHP4 to PHP5, you can keep your scripts untouched using this:

http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/index.en.html
simlee at indiana dot edu
29-Dec-2005 09:16
The project I'm currently working on uses XPaths to dynamically navigate through chunks of an XML file.  I couldn't find any PHP code on the net that would build the XPath to a node for me, so I wrote my own function.  Turns out it wasn't as hard as I thought it might be (yay recursion), though it does entail using some PHP shenanigans... 

Hopefully it'll save someone else the trouble of reinventing this wheel.

<?php
    function getNodeXPath( $node ) {
        // REMEMBER THAT XPATHS USE BASE-1 INSTEAD OF BASE-0!!!
       
        // Get the index for the current node by looping through the siblings.
        $parentNode = $node->parentNode;
        if( $parentNode != null ) {
            $nodeIndex = 0;
            do {
                $testNode = $parentNode->childNodes->item( $nodeIndex );
                $nodeName = $testNode->nodeName;
                $nodeIndex++;
               
                // PHP trickery!  Here we create a counter based on the node
                //  name of the test node to use in the XPath.
                if( !isset( $$nodeName ) ) $$nodeName = 1;
                else $$nodeName++;
               
                // Failsafe return value.
                if( $nodeIndex > $parentNode->childNodes->length ) return( "/" );
            } while( !$node->isSameNode( $testNode ) );
           
            // Recursively get the XPath for the parent.
            return( getNodeXPath( $parentNode ) . "/{$node->nodeName}[{$$nodeName}]" );
        } else {
            // Hit the root node!  Note that the slash is added when
            //  building the XPath, so we return just an empty string.
            return( "" );
        }
    }
?>
johanwthijs-at-hotmail-dot-com
14-Dec-2005 03:25
Being an experienced ASP developer I was wondering how to replace textual content of a node (with msxml this is simply acheived by setting the 'text' property of a node). Out of frustration I started to play around with SimpleXml but I could not get it to work in combination with xPath.

I took me a lot of time to find out so I hope this helps others:

function replaceNodeText($objXml, $objNode, $strNewContent){
    /*
    This function replaces a node's string content with strNewContent
    */
    $objNodeListNested = &$objNode->childNodes;
    foreach ( $objNodeListNested as $objNodeNested ){
         if ($objNodeNested->nodeType == XML_TEXT_NODE)$objNode->removeChild ($objNodeNested);
    }
   
    $objNode->appendChild($objXml->createTextNode($strNewContent));
}

$objXml= new DOMDocument();
$objXml->loadXML('<root><node id="1">bla</note></root>');
$objXpath = new domxpath($objXml);

$strXpath="/root/node[@id='1']";
$objNodeList = $objXpath ->query($strXpath);
foreach ($objNodeList as $objNode){
//pass the node by reference
replaceNodeText($objXml, &$objNode, $strImportedValue);
}
mark at vectrex dot org dot uk
17-Nov-2005 11:10
Note that these DOM functions expect (and presumably return) all their data in UTF-8 character encoding, regardless of what PHP's current encoding is. This means that text nodes, attribute values etc, should be in utf8.

This applies even if you're generating an XML document which is not ultimately in utf8.

Mark
toby at tobiasly dot com
22-Oct-2005 08:08
This module is not included by default either in the CentOS 4 "centosplus" repository. For those using PHP5 on CentOS 4, a simple "yum --enablerepo=centosplus install php-xml" will do the trick (this will install both the XML and DOM modules).
pes_cz
29-Sep-2005 09:32
When I tried to parse my XHTML Strict files with DOM extension, it couldn't understand xhtml entities (like &copy;). I found post about it here (14-Jul-2005 09:05) which adviced to add resolveExternals = true, but it was very slow. There was some small note about xml catalogs but without any glue. Here it is:

XML catalogs is something like cache. Download all needed dtd's to /etc/xml, edit file /etc/xml/catalog and add this line: <public publicId="-//W3C//DTD XHTML 1.0 Strict//EN" uri="file:///etc/xml/xhtml1-strict.dtd" />

Thats all. Thanks to http://www.whump.com/moreLikeThis/link/03815
amir.laherATcomplinet.com
22-Aug-2005 02:09
This particular W3C page provides invaluable documentation for the DOM classes implemented in php5 (via libxml2). It fills in plenty of php.net's gaps:

http://www.w3.org/TR/DOM-Level-2-Core/core.html

Some key examples:
* concise summary of the class heirachy (1.1.1)
* clarification that DOM level 2 doesn't allow for population of internal DTDs
* explanation of DOMNode->normalize()
* explanation of the DOMImplementation class

The interfaces are described in OMG's Interface Definition Language
aidan at php dot net
19-Jul-2005 03:04
As of PHP 5.1, libxml options may be set using constants rather than the use of proprietary DomDocument properties.

DomDocument->resolveExternals is equivilant to setting
LIBXML_DTDLOAD
LIBXML_DTDATTR

DomDocument->validateOnParse is equivilant to setting
LIBXML_DTDLOAD
LIBXML_DTDVALID

PHP 5.1 users are encouraged to use the new constants.

Example:

DomDocument->load($file, LIBXML_DTDLOAD|LIBXML_DTDATTR);

DomDocument->load($file, LIBXML_DTDLOAD|LIBXML_DTDVALID);
aidan at php dot net
19-Jul-2005 05:27
When dealing with validation or loading, the output errors can be quite annoying.

PHP 5.1 introduces libxml_get_errors().

http://php.net/libxml_get_errors
php at webdevelopers dot cz
14-Jul-2005 09:05
[Editor's Note: If you're using entities, then you have no choice. XML Catalogs can speed DTD resolution.]

Never use

$dom->resolveExternals=true;

when parsing XHTML document that has the DOCTYPE declaration with DTD URL specified in it.

Otherwise parsing the XHTML with DOCTYPE like this one:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

will result in PHP/DOM downloading the DTD file from W3C site when parsing your document. It will add extra delay to your script - I experienced that $dom->load()'s total time was from 1 to 16 seconds.

elixon
spammable69 at hotmail dot com
12-Apr-2005 07:18
I wrote a framework to implement the StyleSheet interfaces as specified on the W3C website.  The code is written in PHP, and is NOT a complete implementation.  Use it how ya like.  I was planning on adding the CSSStyleSheet interfaces as well.  Feel free to ask.

<?
    class StyleSheetList {
        public length;
        private self;
       
        function __construct ( ) {
            $this->self = array();
        }
       
        function __get($property, $&ret) {
            if($property == 'length')
                $ret = count($this->self);
            return true;
        }
       
        function __set($property, $val) {
            if($property == 'length')
                return true;
        }
       
        function item( $index ) {
            return $this->self[$index];
        }
    }
   
    class MediaList extends StyleSheetList {
       
        function appendMedium ( $newMedium ) {
            array_push($this->self, $newMedium);
        }
       
        function deleteMedium ( $oldMedium ) {
            foreach($this->self as $item) {
                if( $item == $oldMedium ) {
                    $item = $this->self[ $this->length-1 ];
                    array_pop($this->self);
                    break;
                }
            }
        }
    }
   
    class DocumentStyle {
        public styleSheets;
       
        function __construct ( ) {
            $this->styleSheets = new StyleSheetList();
        }
       
        function __set($property, $val) {
            if($property == 'styleSheets')
                return true;
        }
    }
   
    class LinkStyle {
        public sheet;
       
        function __construct () {
            $this->sheet = new StyleSheet();
        }
       
        function __set($property, $val) {
            if($property == 'sheet')
                return true;
        }
    }
   
    class StyleSheet {
        public type;
        public disabled;
        public ownerNode;
        public parentStyleSheet;
        public href;
        public title;
        public media;
       
        function __construct( $type, $disabled, $ownerNode, $parentStyleSheet, $href, $title){
            $this->type = $type;
            $this->disabled = $disabled;
            $this->media = new MediaList();
            $this->ownerNode = $ownerNode;
            $this->parentStyleSheet = $parentStyleSheet;
            $this->href = $href;
            $this->title = $title;
        }
    }
?>

Only contactable via http://murpsoft.com/contact.html
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