PHP 8.4 deprecation: E_USER_ERROR #478
Description
Calling trigger_error() with error_level being equal to E_USER_ERROR is now deprecated.
https://www.php.net/manual/en/migration84.deprecated.php
See https://github.com/search?q=repo%3Aezyang%2Fhtmlpurifier%20E_USER_ERROR&type=code