[edit] Last updated: Fri, 10 Feb 2012

La classe DOMNode

(PHP 5)

Synopsis de la classe

DOMNode {

/* Propriétés */

public readonly string $DOMNode->nodeName ;

public string $nodeValue ;

public readonly int $nodeType ;

public readonly DOMNode $parentNode ;

public readonly DOMNodeList $childNodes ;

public readonly DOMNode $firstChild ;

public readonly DOMNode $lastChild ;

public readonly DOMNode $previousSibling ;

public readonly DOMNode $nextSibling ;

public readonly DOMNamedNodeMap $attributes ;

public readonly DOMDocument $ownerDocument ;

public readonly string $namespaceURI ;

public string $prefix ;

public readonly string $localName ;

public readonly string $baseURI ;

public string $textContent ;

/* Méthodes */

public DOMNode DOMNode::appendChild ( DOMNode $newnode )

public string DOMNode::C14N ([ bool $exclusive [, bool $with_comments [, array $xpath [, array $ns_prefixes ]]]] )

public int DOMNode::C14NFile ( string $uri [, bool $exclusive [, bool $with_comments [, array $xpath [, array $ns_prefixes ]]]] )

public DOMNode DOMNode::cloneNode ([ bool $deep ] )

public int DOMNode::getLineNo ( void )

public string DOMNode::getNodePath ( void )

public bool DOMNode::hasAttributes ( void )

public bool DOMNode::hasChildNodes ( void )

public DOMNode DOMNode::insertBefore ( DOMNode $newnode [, DOMNode $refnode ] )

public bool DOMNode::isDefaultNamespace ( string $namespaceURI )

public bool DOMNode::isSameNode ( DOMNode $node )

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

public string DOMNode::lookupNamespaceURI ( string $prefix )

public string DOMNode::lookupPrefix ( string $namespaceURI )

public void DOMNode::normalize ( void )

public DOMNode DOMNode::removeChild ( DOMNode $oldnode )

public DOMNode DOMNode::replaceChild ( DOMNode $newnode , DOMNode $oldnode )

}

Propriétés

nodeName: Retourne le nom, le plus précis, pour le type de noeud courant
nodeValue: La valeur du noeud, suivant son type
nodeType: Récupère le type du noeud. Une des constantes XML_xxx_NODE
parentNode: Le parent de ce noeud
childNodes: Un DOMNodeList qui contient tous les fils de ce noeud. S'il n'y a aucun fils, ce sera un DOMNodeList vide.
firstChild: Le premier fils de ce noeud. S'il n'y a aucun noeud de ce type, retourne NULL.
lastChild: Le dernier fils de ce noeud. S'il n'y a aucun noeud de ce type, retourne NULL.
previousSibling: Le noeud précédant immédiatement ce noeud. S'il n'y a aucun noeud, retourne NULL.
nextSibling: Le noeud suivant immédiatement ce noeud. S'il n'y a aucun noeud, retourne NULL.
attributes: Un DOMNamedNodeMap contenant les attributs de ce noeud (si c'est unDOMElement) ou NULL sinon.
ownerDocument: L'objet DOMDocument associé avec ce noeud.
namespaceURI: L'espace de nom de l'URL pour ce noeud, ou NULL s'il n'est pas spécifié.
prefix: Le préfixe de l'espace de nom de ce noeud, ou NULL s'il n'est pas spécifié.
localName: Retourne la partie locale du nom qualifié du noeud.
baseURI: La base de l'URL absolue du noeud, ou NULL si l'implémentation n'a pas réussi à obtenir l'URL absolue.
textContent: Cet attribut retourne le contenu texte de ce noeud et de ces descendants.

Notes

Note:
L'extension DOM utilise l'encodage UTF-8. Utilisez utf8_encode() et utf8_decode() pour traiter les textes encodés en ISO-8859-1 ou Iconv pour les autres encodages.

Voir aussi

» spécification W3C

Sommaire

DOMNode::appendChild — Ajoute un nouveau fils à la fin des fils
DOMNode::C14N — Canonise des noeuds en une chaîne
DOMNode::C14NFile — Canonise des noeuds en fichier
DOMNode::cloneNode — Clone un noeud
DOMNode::getLineNo — Lit le numéro de ligne d'un noeud
DOMNode::getNodePath — Récupère un XPath pour un nœud
DOMNode::hasAttributes — Vérifie si le noeud possède un attribut
DOMNode::hasChildNodes — Vérifie si le noeud possède des enfants
DOMNode::insertBefore — Ajoute un nouveau fils à la fin des enfants
DOMNode::isDefaultNamespace — Vérifie si l'espace de nom spécifié est l'espace de noms par défaut ou non
DOMNode::isSameNode — Indique si deux noeuds sont identiques
DOMNode::isSupported — Vérifie si la fonctionnalité est disponible pour la version spécifiée
DOMNode::lookupNamespaceURI — Retourne l'URI de l'espace de noms selon le préfixe
DOMNode::lookupPrefix — Retourne le préfixe de l'espace de noms selon l'URI de l'espace de noms
DOMNode::normalize — Normalise le noeud
DOMNode::removeChild — Supprime un fils de la liste des enfants
DOMNode::replaceChild — Remplace un fils

DOMNode::appendChild

DOMNamedNodeMap::item

[edit] Last updated: Fri, 10 Feb 2012

add a note User Contributed Notes DOMNode

alastair dot dallas at gmail dot com 25-Sep-2011 02:44


The issues around mixed content took me some experimentation to remember, so I thought I'd add this note to save others time.



When your markup is something like: <div><p>First text.</p><ul><li><p>First bullet</p></li></ul></div>, you'll get XML_ELEMENT_NODEs that are quite regular. The <div> has children <p> and <ul> and the nodeValue for both <p>s yields the text you expect.



But when your markup is more like <p>This is <b>bold</b> and this is <i>italic</i>.</p>, you realize that the nodeValue for XML_ELEMENT_NODEs is not reliable. In this case, you need to look at the <p>'s child nodes. For this example, the <p> has children: #text, <b>, #text, <i>, #text. 



In this example, the nodeValue of <b> and <i> is the same as their #text children. But you could have markup like: <p>This <b>is bold and <i>bold italic</i></b>, you see?</p>. In this case, you need to look at the children of <b>, which will be #text, <i>, because the nodeValue of <b> will not be sufficient.



XML_TEXT_NODEs have no children and are always named '#text'. Depending on how whitespace is handled, your tree may have "empty" #text nodes as children of <body> and elsewhere.



Attributes are nodes, but I had forgotten that they are not in the tree expressed by childNodes. Walking the full tree using childNodes will not visit any attribute nodes.

mjpelmear at gmail dot com 03-Jun-2011 07:33


getAttribute() returns an empty string if the requested attribute doesn't exist in the node.

stilgar at gilevski dot fakepart dot name 21-May-2011 07:17


If you have empty $node->textContent and $node->textValue, check if document that is loaded have UTF-8 encoding.

imranomar at gmail dot com 20-Mar-2011 12:10


Just discovered that node->nodeValue strips out all the tags

I. Cook 19-Apr-2010 08:43


For a reference with more information about the XML DOM node types, see http://www.w3schools.com/dom/dom_nodetype.asp



(When using PHP DOMNode, these constants need to be prefaced with "XML_")

R. Studer 13-Jan-2010 02:03


For clarification:

The assumingly 'discoverd' by previous posters and seemingly undocumented methods (.getElementsByTagName and .getAttribute) on this class (DOMNode) are in fact methods of the class DOMElement, which inherits from DOMNode.



See: http://www.php.net/manual/en/class.domelement.php

David Rekowski 07-Jan-2010 06:54


You cannot simply overwrite $textContent, to replace the text content of a DOMNode, as the missing readonly flag suggests. Instead you have to do something like this:



<?php



$node->removeChild($node->firstChild);

$node->appendChild(new DOMText('new text content'));



?>



This example shows what happens:



<?php



$doc = DOMDocument::loadXML('<node>old content</node>');

$node = $doc->getElementsByTagName('node')->item(0);

echo "Content 1: ".$node->textContent."\n";



$node->textContent = 'new content';

echo "Content 2: ".$node->textContent."\n";



$newText = new DOMText('new content');



$node->appendChild($newText);

echo "Content 3: ".$node->textContent."\n";



$node->removeChild($node->firstChild);

$node->appendChild($newText);

echo "Content 4: ".$node->textContent."\n";



?>



The output is:



Content 1: old content // starting content

Content 2: old content // trying to replace overwriting $node->textContent

Content 3: old contentnew content // simply appending the new text node

Content 4: new content // removing firstchild before appending the new text node



If you want to have a CDATA section, use this:



<?php

$doc = DOMDocument::loadXML('<node>old content</node>');

$node = $doc->getElementsByTagName('node')->item(0);

$node->removeChild($node->firstChild);

$newText = $doc->createCDATASection('new cdata content');

$node->appendChild($newText);

echo "Content withCDATA: ".$doc->saveXML($node)."\n";

?>

Steve K 03-Nov-2009 04:47


This class apparently also has a getElementsByTagName method.



I was able to confirm this by evaluating the output from DOMNodeList->item() against various tests with the is_a() function.

marc at ermshaus dot org 05-May-2009 02:36


It took me forever to find a mapping for the XML_*_NODE constants. So I thought, it'd be handy to paste it here:



 1 XML_ELEMENT_NODE

 2 XML_ATTRIBUTE_NODE

 3 XML_TEXT_NODE

 4 XML_CDATA_SECTION_NODE

 5 XML_ENTITY_REFERENCE_NODE

 6 XML_ENTITY_NODE

 7 XML_PROCESSING_INSTRUCTION_NODE

 8 XML_COMMENT_NODE

 9 XML_DOCUMENT_NODE

10 XML_DOCUMENT_TYPE_NODE

11 XML_DOCUMENT_FRAGMENT_NODE

12 XML_NOTATION_NODE

matt at lamplightdb dot co dot uk 05-Apr-2009 11:39


And apparently also a setAttribute method too:



$node->setAttribute( 'attrName' , 'value' );

jorge dot hebrard at gmail dot com 23-Jan-2009 10:29


Try canonicalization:

<?php

$dom = new DOMDocument;

$dom->loadHTMLFile('http://www.example.com/');

echo $dom->documentElement->C14N();

?>



Or output it to a file, using C14NFile()



Undocumented stuff ;)

brian wildwoodassociates.info 07-Dec-2008 04:27


This class has a getAttribute method.



Assume that a DOMNode object $ref contained an anchor taken out of a DOMNode List.  Then 



    $url = $ref->getAttribute('href'); 



would isolate the url associated with the href part of the anchor.

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