Last updated: Fri, 20 May 2011

DOMElement::setAttribute

(PHP 5)

DOMElement::setAttribute — Añade un nuevo atributo

Descripción

DOMAttr DOMElement::setAttribute ( string $name , string $value )

Establece un atributo con nombre name al valor dado. Si el atributo no existe, se creará.

Parámetros

name: El nombre del atributo.
value: El valor del atributo.

Valores devueltos

El nuevo objeto DOMAttr o FALSE si ocurrió un error.

Errores/Excepciones

DOM_NO_MODIFICATION_ALLOWED_ERR: Lanzado si el nodo es de sólo lectura.

Ejemplos

Example #1 Establecer un atributo


<?php
$doc = new DOMDocument("1.0");
$node = $doc->createElement("para");
$newnode = $doc->appendChild($node);
$newnode->setAttribute("align", "left");
?>

Ver también

DOMElement::hasAttribute() - Comprueba si existe un atributo
DOMElement::getAttribute() - Devuelve el valor de un atributo
DOMElement::removeAttribute() - Elimina un atributo

DOMElement::setAttributeNode

DOMElement::removeAttributeNS

Last updated: Fri, 20 May 2011

add a note User Contributed Notes DOMElement::setAttribute

Rakesh Verma - rakeshnsony at gmail dot com 11-Nov-2010 07:27


<?php

//Store your html into $html variable.

$html="

<html>

<head>

<title>Untitled Document</title>

</head>



<body>

    <a href='http://example.com'>Example</a><br>

    <a href='http://google.com'>Google</a><br>

    

    <a href='http://www.yahoo.com'>Yahoo</a><br>

</body>



</html>";



$dom = new DOMDocument();

$dom->loadHTML($html);



//Evaluate Anchor tag in HTML

$xpath = new DOMXPath($dom);

$hrefs = $xpath->evaluate("/html/body//a");



for ($i = 0; $i < $hrefs->length; $i++) {

        $href = $hrefs->item($i);

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



        //remove and set target attribute        

        $href->removeAttribute('target');

        $href->setAttribute("target", "_blank");



        $newURL=$url."/newurl";



        //remove and set href attribute        

        $href->removeAttribute('href');

        $href->setAttribute("href", $newURL);

}



// save html

$html=$dom->saveHTML();



echo $html;



?>

address at gmail dot com 03-Jul-2008 02:25


If wanting to set an attribute of an element with unique id of "1"



<?php

$dom = new DomDocument();

$dom->load('test.xml');

$xp = new DomXPath($dom);

$res = $xp->query("//*[@id = '1']");

$res->item(0)->setAttribute('title','2');

$dom->save('test.xml');

?>

Vasil Rangelov 31-Jul-2007 11:44


@karvjorm,

Using this method is not exactly a good practice. Infact, I think it may be a bug.

Names beginning with "xml" are reserved (for namespaces in this case).

setAttribute() should return false in this case I think, but I suppose it doesn't.



Still, the right way to do it is with createElementNS().

It lets you specify the namespace when creating the element node.



So the equivalent to yours ($html added to allow word wrapping) is:



$dom = new DomDocument('1.0','iso-8859-15');

$html = $dom->createElementNS('http://www.w3.org/1999/xhtml', 'html');

$ht_ml = $dom->appendChild($html);

$ht_ml->setAttribute('xml:lang','fi');

$ht_ml->setAttribute('lang','fi');

karvjorm at users.sourceforge.net 02-Mar-2007 11:05


$dom = new DomDocument('1.0','iso-8859-15');



$ht_ml = $dom->appendChild($dom->createElement('html'));

$ht_ml->setAttribute('xmlns','http://www.w3.org/1999/xhtml');

$ht_ml->setAttribute('xml:lang','fi');

$ht_ml->setAttribute('lang','fi');



Result:



<?xml version="1.0" encoding="iso-8859-15"?>

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fi" lang="fi">

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