The libXMLError class
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
Contains various information about errors thrown by libxml. The error codes are described within the official » xmlError API documentation.
the severity of the error (one of the following constants:
The error's code.
The column where the error occurred.
This property isn't entirely implemented in libxml and therefore
0is often returned.
The error message, if any.
The filename, or empty if the XML was loaded from a string.
The line where the error occurred.