PHP 8.4: Fatal error: DateTimeInterface can't be implemented by user classes in mydatetimeclass.php on line 2

PHP 8.5: Fatal error: DateTimeInterface can't be implemented by user classes in mydatetimeclass.php on line 2 Stack trace: #0 autoload.php(4): include() #1 test.php(4): autoloader('MyDateTimeClass') #2 {main}

PHP with Xdebug: Fatal error: DateTimeInterface can't be implemented by user classes in mydatetimeclass.php on line 2 Call Stack: 0.0002 520872 1. {main}() test.php:0 0.0003 523432 2. autoloader($class = 'MyDateTimeClass') test.php:4 0.0003 525000 3. include('mydatetimeclass.php') autoload.php:4