(PHP 5, PHP 7)
DOMElement::setIdAttributeNS — Declares the attribute specified by local name and namespace URI to be of type ID
public DOMElement::setIdAttributeNS ( string $namespaceURI , string $localName , bool $isId ) : void
Declares the attribute specified by localName and namespaceURI to be of type ID.
namespaceURI
The namespace URI of the attribute.
localName
The local name of the attribute, as prefix:tagname.
isId
Set it to true if you want name to be of type ID, false otherwise.
No value is returned.
DOM_NO_MODIFICATION_ALLOWED_ERR
Raised if the node is readonly.
DOM_NOT_FOUND
Raised if name is not an attribute of this element.
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https://www.php.net/manual/en/domelement.setidattributens.php