<?phpnamespaceDotenv\Environment;/** * This environment factory interface. * * If you need custom implementations of the variables interface, implement * this interface, and use your implementation in the loader. */interfaceFactoryInterface{/** * Creates a new mutable environment variables instance. * * @return \Dotenv\Environment\VariablesInterface */publicfunctioncreate();/** * Creates a new immutable environment variables instance. * * @return \Dotenv\Environment\VariablesInterface */publicfunctioncreateImmutable();}