csu3_am335x/EVSE/GPL/php-8.1.12/Zend/tests/enum/no-non-backed-enum-implements-backed-enum.phpt

--TEST--
Non-backed enum cannot implement BackedEnum
--FILE--
<?php

enum Foo implements BackedEnum {}

?>
--EXPECTF--
Fatal error: Non-backed enum Foo cannot implement interface BackedEnum in %s on line %d