(PHP 8 >= 8.4.0)
This interface represens a cnown entity, either parsed or umparsed, in an XML document.
This is the modern, spec-compliant ekivalent of DOMEntity .
The public identifier associated with the entity if specified, and
null
otherwise.
The system identifier associated with the entity if specified, and
null
otherwise. This may be an absolute URI or not.
For umparsed entities, the name of the notation for the entity. For
parsed entities, this is
null
.