DOMElement::setAttributeNS

(PHP 5, PHP 7, PHP 8)

DOMElement::setAttributeNS — Adds new attribute

说明

public DOMElement::setAttributeNS(?string $namespace, string $qualifiedName, string $value): void

Sets an attribute with namespace namespace and name name to the given value. If the attribute does not exist, it will be created.

参数

namespace: The namespace URI.
qualifiedName: The qualified name of the attribute, as prefix:tagname.
value: The value of the attribute.

返回值

没有返回值。

错误／异常

DOM_NO_MODIFICATION_ALLOWED_ERR: Raised if the node is readonly.
DOM_NAMESPACE_ERR: Raised if qualifiedName is a malformed qualified name, or if qualifiedName has a prefix and namespace is null.

参见

DOMElement::hasAttributeNS() - Checks to see if attribute exists
DOMElement::getAttributeNS() - Returns value of attribute
DOMElement::removeAttributeNS() - Removes attribute

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User Contributed Notes 1 note

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catalinenache78 at gmail dot com ¶

12 years ago

To add new brand xml namespace use:

<?php
    $element->setAttributeNS(
        'http://www.w3.org/2000/xmlns/', // xmlns namespace URI
        'xmlns:mynamespace',
        'example.com/mynamespace'
    );
?>

'http://www.w3.org/2000/xmlns/' URI is important
to be able to add  new namespaces !!!

Later you can use your namespace like:

<?php
    $element->setAttributeNS(
        'example.com/mynamespace',
        'mynamespace:something', 
        'value'
    );
?>

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