ConFoo 2025

Dom\Attr::rename

(PHP 8 >= 8.4.0)

Dom\Attr::renameChanges the qualified name or namespace of an attribute

Descrição

public Dom\Attr::rename(?string $namespaceURI, string $qualifiedName): void

This method changes the qualified name or namespace of an attribute.

Parâmetros

namespaceURI
The new namespace URI of the attribute.
qualifiedName
The new qualified name of the attribute.

Valor Retornado

Nenhum valor é retornado.

Erros/Exceções

DOMException with code Dom\NAMESPACE_ERR
Raised if there is an error with the namespace, as determined by qualifiedName.
DOMException with code Dom\INVALID_MODIFICATION_ERR
Raised if there already exists an attribute in the element with the same qualified name.

Exemplos

Exemplo #1 Dom\Attr::rename() example to change both the namespace and qualified name

This changes the qualified name of my-attr to my-new-attr and also changes its namespace to urn:my-ns.

<?php

$doc
= Dom\XMLDocument::createFromString('<root my-attr="value"/>');

$root = $doc->documentElement;
$attribute = $root->attributes['my-attr'];
$attribute->rename('urn:my-ns', 'my-new-attr');

echo
$doc->saveXml();

?>

O exemplo acima produzirá:

<?xml version="1.0" encoding="UTF-8"?>
<root xmlns:ns1="urn:my-ns" ns1:my-new-attr="value"/>

Exemplo #2 Dom\Attr::rename() example to change only the qualified name

This only changes the qualified name of my-attr and keeps the namespace URI the same.

<?php

$doc
= Dom\XMLDocument::createFromString('<root my-attr="value"/>');

$root = $doc->documentElement;
$attribute = $root->attributes['my-attr'];
$attribute->rename($attribute->namespaceURI, 'my-new-attr');

echo
$doc->saveXml();

?>

O exemplo acima produzirá:

<?xml version="1.0" encoding="UTF-8"?>
<root my-new-attr="value"/>

Notas

Nota: It is sometimes necessary to change the qualified name and namespace URI together in one step to not break any namespace rules.

Veja Também

  • Dom\Element::rename()
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