DOMElement::setAttributeNode

(PHP 5, PHP 7, PHP 8)

DOMElement::setAttributeNode — Adds new attribute node to element

说明

public DOMElement::setAttributeNode(DOMAttr $attr): DOMAttr|null|false

Adds new attribute node attr to element. If an attribute with the same name already exists on the element, that attribute is replaced by attr.

参数

attr: The attribute node.

返回值

Returns the old attribute if it has been replaced or null if there was no old attribute. If a DOM_WRONG_DOCUMENT_ERR error is raised, and strictErrorChecking is false, false is returned.

错误／异常

DOM_WRONG_DOCUMENT_ERR: Raised if attr belongs to a different document than the element.

参见

DOMElement::hasAttribute() - Checks to see if attribute exists
DOMElement::getAttributeNode() - Returns attribute node
DOMElement::removeAttributeNode() - Removes attribute

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karvjorm at users.sourceforge.net ¶

17 years ago

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

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

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

$tit_le= $he_ad->appendChild($dom->createElement('title'));
$tit_le->appendChild($dom->createTextNode('DOMAttr test'));

$me_ta = $he_ad->appendChild(new DOMElement('meta'));
$me_ta->setAttributeNode(new DOMAttr('name', 'Description'));
$me_ta->setAttributeNode(new DOMAttr('content', 'example'));

$me_ta = $he_ad->appendChild(new DOMElement('meta'));
$me_ta->setAttributeNode(new DOMAttr('name', 'Author'));
$me_ta->setAttributeNode(new DOMAttr('content', 'karvjorm'));

Result:

<?xml version="1.0" encoding="iso-8859-15"?>
<html>
  <head>
    <title>DOMAttr test</title>
    <meta name="Description" content="example"/>
    <meta name="Author" content="karvjorm"/>
  </head>