Test project for media files management.
<?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;
}
}