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SystemEnv.php
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<?php /* * This file is part of Psy Shell. * * (c) 2012-2023 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Psy; /** * Environment variables implementation via getenv(). */ class SystemEnv implements EnvInterface { /** * Get an environment variable by name. * * @return string|null */ public function get(string $key) { if (isset($_SERVER[$key]) && $_SERVER[$key]) { return $_SERVER[$key]; } $result = \getenv($key); return $result === false ? null : $result; } }