<?php namespace Dotenv\Repository; use ArrayAccess; /** * @extends \ArrayAccess<string,string|null> */ interface RepositoryInterface extends ArrayAccess { /** * Tells whether environment variable has been defined. * * @param string $name * * @return bool */ public function has($name); /** * Get an environment variable. * * @param string $name * * @throws \InvalidArgumentException * * @return string|null */ public function get($name); /** * Set an environment variable. * * @param string $name * @param string|null $value * * @throws \InvalidArgumentException * * @return void */ public function set($name, $value = null); /** * Clear an environment variable. * * @param string $name * * @throws \InvalidArgumentException * * @return void */ public function clear($name); }