pushHandler( new CallbackHandler( function (Throwable $e) use ($environment) { if ($environment !== 'dev') { http_response_code(500); echo 'Whoops'; } error_log(<<getMessage()} {$e->getTraceAsString()} TXT ); } ) ); if ($environment === 'dev') { $whoops->pushHandler(new PrettyPageHandler); } $whoops->register(); throw new \Exception('Hello world');