| Attribute |
| Formatter |
| Handler |
| Processor |
| Test |
| LogRecord | Monolog log record interface for forward compatibility with Monolog 3.0 |
| ResettableInterface | Handler or Processor implementing this interface will be reset when Logger::reset() is called. |
| DateTimeImmutable | Overrides default json encoding of date time objects |
| ErrorHandler | Monolog error handler |
| Logger | Monolog log channel |
| Registry | Monolog log registry |
| SignalHandler | Monolog POSIX signal handler |
| Utils |