(PHP 5, PHP 7, PHP 8)
DOMElement::setAttributeNS — Adds new attribute
Sets an attribute with namespace namespace and
name qualifiedName to the given value. If the attribute
does not exist, it will be created.
namespaceThe namespace URI.
qualifiedName
The qualified name of the attribute, as prefix:tagname.
valueThe value of the attribute.
No value is returned.
DOM_NO_MODIFICATION_ALLOWED_ERRRaised 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.