public DOMNode::C14N(
    bool $exclusive = false,
    bool $withComments = false,
    ?array $xpath = null,
    ?array $nsPrefixes = null
): string|false

public DOMNode::C14NFile(
    string $uri,
    bool $exclusive = false,
    bool $withComments = false,
    ?array $xpath = null,
    ?array $nsPrefixes = null
): int|false

public DOMNode::cloneNode(bool $deep = false): DOMNode|false

public DOMNode::contains(DOMNode|DOMNameSpaceNode|null $other): bool

public DOMNode::getLineNo(): int

public DOMNode::getNodePath(): ?string

public DOMNode::getRootNode(?array $options = null): DOMNode

public DOMNode::hasAttributes(): bool

public DOMNode::hasChildNodes(): bool

public DOMNode::insertBefore(DOMNode $node, ?DOMNode $child = null): DOMNode|false

public DOMNode::isDefaultNamespace(string $namespace): bool

public DOMNode::isEqualNode(?DOMNode $otherNode): bool

public DOMNode::isSameNode(DOMNode $otherNode): bool

public DOMNode::isSupported(string $feature, string $version): bool

public DOMNode::lookupNamespaceURI(?string $prefix): ?string

public DOMNode::lookupPrefix(string $namespace): ?string

public DOMNode::normalize(): void

public DOMNode::removeChild(DOMNode $child): DOMNode|false

public DOMNode::replaceChild(DOMNode $node, DOMNode $child): DOMNode|false

}

プロパティ

childElementCount: 子要素の数。
firstElementChild: 最初の子要素。存在しない場合は null になります。
lastElementChild: 最後の子要素。存在しない場合は null になります。
nextElementSibling: 次の兄弟要素。存在しない場合は null になります。
previousElementSibling: 前の兄弟要素。存在しない場合は null になります。
schemaTypeInfo: 未実装。常に null を返す。
tagName: 要素名
className: スペースで分割された、要素のクラスを表す文字列
id: 要素のID

変更履歴

バージョン	説明
8.0.0	プロパティ `firstElementChild`, `lastElementChild`, `childElementCount`, `previousElementSibling`, `nextElementSibling` が追加されました。
8.0.0	DOMElement は、 DOMParentNode と DOMChildNode を実装しました。

注意

注意:
DOM拡張モジュールは UTF-8 エンコーディングを使います。他のエンコーディングを扱う場合は、mb_convert_encoding(), UConverter::transcode(), iconv() を使ってください。

DOMElement::after — 要素の後ろにノードを追加する
DOMElement::append — 最後のノードの後ろにノードを追加する
DOMElement::before — 要素の前にノードを追加する
DOMElement::__construct — 新しい DOMElement オブジェクトを作成する
DOMElement::getAttribute — 属性の値を返す
DOMElement::getAttributeNames — 属性の名前を取得する
DOMElement::getAttributeNode — 属性ノードを返す
DOMElement::getAttributeNodeNS — 属性ノードを返す
DOMElement::getAttributeNS — 属性の値を返す
DOMElement::getElementsByTagName — タグ名から要素を取得する
DOMElement::getElementsByTagNameNS — 名前空間 URI とローカル名から要素を取得する
DOMElement::hasAttribute — 属性が存在するかどうかを調べる
DOMElement::hasAttributeNS — 属性が存在するかどうかを調べる
DOMElement::insertAdjacentElement — 隣接する要素を挿入する
DOMElement::insertAdjacentText — 隣接するテキストを挿入する
DOMElement::prepend — 最初の子ノードの前にノードを追加する
DOMElement::remove — 要素を削除する
DOMElement::removeAttribute — 属性を削除する
DOMElement::removeAttributeNode — 属性を削除する
DOMElement::removeAttributeNS — 属性を削除する
DOMElement::replaceChildren — 要素中の子を置換する
DOMElement::replaceWith — 要素を新しいノードで置換する
DOMElement::setAttribute — 属性を新しく追加する、または変更する
DOMElement::setAttributeNode — 新しい属性ノードを要素に追加する
DOMElement::setAttributeNodeNS — 新しい属性ノードを要素に追加する
DOMElement::setAttributeNS — 新しい属性を追加する
DOMElement::setIdAttribute — ID 型の属性を名前で宣言する
DOMElement::setIdAttributeNode — ID 型の属性をノードで宣言する
DOMElement::setIdAttributeNS — ID 型の属性をローカル名および名前空間 URI で宣言する
DOMElement::toggleAttribute — 属性の値を切り替える

Improve This Page

Learn How To Improve This Page • Submit a Pull Request • Report a Bug

＋add a note

User Contributed Notes 13 notes

down

118

j DOT wagner ( AT ) medieninnovation.com ¶

16 years ago

Caveat!
It took me almost an hour to figure this out, so I hope it saves at least one of you some time.

If you want to debug your DOM tree and try var_dump() or similar you will be fooled into thinking the DOMElement that you are looking at is empty, because var_dump() says: object(DOMElement)#1 (0) { } 

After much debugging I found out that all DOM objects are invisible to var_dump() and print_r(), my guess is because they are C objects and not PHP objects. So I tried saveXML(), which works fine on DOMDocument, but is not implemented on DOMElement.

The solution is simple (if you know it):
$xml = $domElement->ownerDocument->saveXML($domElement);

This will give you an XML representation of $domElement.

down

Pinochet ¶

16 years ago

Hi to get the value of DOMElement just get the nodeValue public parameter (it is inherited from DOMNode):
<?php 
echo $domElement->nodeValue; 
?>
Everything is obvious if you now about this thing ;-)

down

Janne Enberg ¶

11 years ago

This page doesn't list the inherited properties from DOMNode, e.g. the quite important textContent property. It would be immensely helpful if it would list those as well.

down

dpetroff ( at ) gmail.com ¶

13 years ago

Hi!



Combining all th comments, the easiest way to get inner HTML of the node is to use this function:



<?php

function get_inner_html( $node ) {

    $innerHTML= '';

    $children = $node->childNodes;

    foreach ($children as $child) {

        $innerHTML .= $child->ownerDocument->saveXML( $child );

    }



    return $innerHTML;

}

?>

down

Daniel Morlock ¶

15 years ago

It would be nice to have a function which converts a document/node/element into a string. 

Anyways, I use the following code snippet to get the innerHTML value of a DOMNode:

<?php
function getInnerHTML($Node)
{
     $Body = $Node->ownerDocument->documentElement->firstChild->firstChild;
     $Document = new DOMDocument();     
     $Document->appendChild($Document->importNode($Body,true));
     return $Document->saveHTML();
}
?>

down

felix dot klee at inka dot de ¶

11 years ago

How to rename an element and preserve attributes:

<?php

// Changes the name of element $element to $newName.
function renameElement($element, $newName) {
  $newElement = $element->ownerDocument->createElement($newName);
  $parentElement = $element->parentNode;
  $parentElement->insertBefore($newElement, $element);

  $childNodes = $element->childNodes;
  while ($childNodes->length > 0) {
    $newElement->appendChild($childNodes->item(0));
  }

  $attributes = $element->attributes;
  while ($attributes->length > 0) {
    $attribute = $attributes->item(0);
    if (!is_null($attribute->namespaceURI)) {
      $newElement->setAttributeNS('http://www.w3.org/2000/xmlns/',
                                  'xmlns:'.$attribute->prefix,
                                  $attribute->namespaceURI);
    }
    $newElement->setAttributeNode($attribute);
  }

  $parentElement->removeChild($element);
}
 
function prettyPrint($d) {
  $d->formatOutput = true;
  echo '<pre>'.htmlspecialchars($d->saveXML()).'</pre>';
}

$d = new DOMDocument( '1.0' );
$d->loadXML('<?xml version="1.0"?>
<library>
  <data a:foo="1" x="bar" xmlns:a="http://example.com/a">
    <invite>
      <username>jmansa</username>
      <userid>1</userid>
    </invite>
    <update>1</update>
  </data>
</library>');

$xpath = new DOMXPath($d);
$elements = $xpath->query('/library/data');
if ($elements->length == 1) {
  $element = $elements->item(0);
  renameElement($element, 'invites');
}

prettyPrint($d);

?>

down

patrick smith ¶

16 years ago

Although it may be preferable to use the dom to manipulate elements, sometimes it's useful to actually get the innerHTML from a document element (e.g. to load into a client-side editor).



To get the innerHTML of a specific element ($elem_id) in a specific html file ($filepath):



<?php

$innerHTML = '';

$doc = new DOMDocument();

$doc->loadHTMLFile($filepath);    

$elem = $doc->getElementById($elem_id);



// loop through all childNodes, getting html        

$children = $elem->childNodes;

foreach ($children as $child) {

    $tmp_doc = new DOMDocument();

    $tmp_doc->appendChild($tmp_doc->importNode($child,true));        

    $innerHTML .= $tmp_doc->saveHTML();

}

?>

down

ae.fxx ¶

16 years ago

Hi there.

Remember to append a DOMNode (or any of its descendants) to a DOMDocument __BEFORE__ you try to append a child to it.

I don't know why it has to be this way but it can't be done without it.

bye

down

johnny ¶

10 years ago

Get html of a node
 $html .= $dom->saveHTML($node);

down

Anonymous ¶

13 years ago

you can use DOMNode::nodeValue
DOMElement inherits this public property.

$elem->nodeValue

down

loopduplicate at burningtoken dot com ¶

13 years ago

This works perfect for me as well:



<?php $xml = $domElement->ownerDocument->saveXML($domElement); ?>

down

nawaman at gmail dot com ¶

15 years ago

The following code shows can text-only content be extracted from a document.



<?php

function getTextFromNode($Node, $Text = "") {

    if ($Node->tagName == null)

        return $Text.$Node->textContent;



    $Node = $Node->firstChild;

    if ($Node != null)

        $Text = getTextFromNode($Node, $Text);



    while($Node->nextSibling != null) {

        $Text = getTextFromNode($Node->nextSibling, $Text);

        $Node = $Node->nextSibling;

    }

    return $Text;

}



function getTextFromDocument($DOMDoc) {

    return getTextFromNode($DOMDoc->documentElement);

}



$Doc = new DOMDocument();

$Doc->loadHTMLFile("Test.html");

echo getTextFromDocument($Doc)."\n";

?>

down

-3

Severin ¶

16 years ago

I wanted to find similar Elements - thats why I built an Xpath-String like this - maybe somebody needs it... its not very pretty - but neither is domdocument :)



<?php



$dom->load($xmlFile))



$xpathQuery = '//*';

$xmlNodes = $xpath->query($xpathQuery);

        

$pathlist = array();

$attrlist = array();

foreach ($xmlNodes as $node) {



  $depth = $this->_getDomDepth($node);   //get Path-Depth (for array key)

  $pathlist[$depth] = $node->tagName;     // tagname

          

  $attrs = $node->attributes;

  $attr='';

  $a=0;

  foreach ($attrs as $attrName => $attrNode)  // attributes

            {

              if ($attrName !='reg')

              {

                if ($a++!=0) $attr .= ' and ';

                $attr .= '@'.$attrName.'='."'".$attrNode->value."'";

              }

            }

          

          $attrlist[$depth] = $attr?'['.$attr.']':'';

          

          $path = ''; for ($i=0;$i<=$depth;$i++) $path .= '/'.$pathlist[$i].$attrlist[$i];  // the xpath of the actual Element



    // ... now you can go on and user $path to find similar elements

    }

  }

}



 private function _getDomDepth(DomNode $node)

   {

     $r = -2;

     while ($node) {

       $r++;  

       $node = $node->parentNode;

     } 

     return  $r;

   }

?>

＋add a note

DOMElement クラス

クラス概要

プロパティ

変更履歴

注意

目次

Improve This Page

User Contributed Notes 13 notes