*/ private $variables; /** * Create a new array adapter instance. * * @return void */ private function __construct() { $this->variables = []; } /** * Create a new instance of the adapter, if it is available. * * @return \PhpOption\Option<\Dotenv\Repository\Adapter\AdapterInterface> */ public static function create() { /** @var \PhpOption\Option */ return Some::create(new self()); } /** * Read an environment variable, if it exists. * * @param string $name * * @return \PhpOption\Option */ public function read(string $name) { return Option::fromArraysValue($this->variables, $name); } /** * Write to an environment variable, if possible. * * @param string $name * @param string $value * * @return bool */ public function write(string $name, string $value) { $this->variables[$name] = $value; return true; } /** * Delete an environment variable, if possible. * * @param string $name * * @return bool */ public function delete(string $name) { unset($this->variables[$name]); return true; } }