getByArgumentPositionOffset($arguments); if (null === $argumentPositionOffset) { throw new InvalidArgumentException('Invalid BY argument value given'); } $byArgumentObject = $arguments[$argumentPositionOffset]; $argumentsBefore = array_slice($arguments, 0, $argumentPositionOffset); $argumentsAfter = array_slice($arguments, $argumentPositionOffset + 1); parent::setArguments(array_merge( $argumentsBefore, $byArgumentObject->toArray(), $argumentsAfter )); } private function getByArgumentPositionOffset(array $arguments): ?int { foreach ($arguments as $i => $value) { if ($value instanceof ByInterface) { return $i; } } return null; } }