(PHP 5, PHP 7)
DOMElement::setAttributeNS — Adds new attribute
public DOMElement::setAttributeNS ( string $namespaceURI , string $qualifiedName , string $value ) : void
Sets an attribute with namespace namespaceURI and name name to the given value. If the attribute does not exist, it will be created.
namespaceURI
The namespace URI.
qualifiedName
The qualified name of the attribute, as prefix:tagname.
value
The value of the attribute.
No value is returned.
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 namespaceURI is null.
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https://www.php.net/manual/en/domelement.setattributens.php