DOMElement::setAttributeNS()
(PHP 5, PHP 7)
Adds new attribute
说明
public DOMElement::setAttributeNS(string $namespaceURI,string $qualifiedName,string $value): void
Sets an attribute with namespace$namespaceURIand name$nameto the given value. If the attribute does not exist, it will be created.
参数
- $namespaceURI
The namespace URI.
- $qualifiedName
The qualified name of the attribute, asprefix:tagname.
- $value
The value of the attribute.
返回值
没有返回值。
错误/异常
DOM_NO_MODIFICATION_ALLOWED_ERR
Raised if the node is readonly.
DOM_NAMESPACE_ERR
Raised if$qualifiedNameis a malformed qualified name, or if$qualifiedNamehas a prefix and$namespaceURIis
NULL
.
参见
- DOMElement::hasAttributeNS() Checks to see if attribute exists
- DOMElement::getAttributeNS() Returns value of attribute
- DOMElement::removeAttributeNS() Removes attribute
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' ); ?>