32 lines
732 B
PHP
32 lines
732 B
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace AsyncAws\Core;
|
|
|
|
/**
|
|
* Helper to safely read environment variables.
|
|
*
|
|
* @author Jérémy Derussé <jeremy@derusse.com>
|
|
*
|
|
* @internal
|
|
*/
|
|
final class EnvVar
|
|
{
|
|
public static function get(string $name): ?string
|
|
{
|
|
if (isset($_ENV[$name])) {
|
|
// variable_order = *E*GPCS
|
|
return (string) $_ENV[$name];
|
|
} elseif (isset($_SERVER[$name]) && !\is_array($_SERVER[$name]) && 0 !== strpos($name, 'HTTP_')) {
|
|
// fastcgi_param, env var, ...
|
|
return (string) $_SERVER[$name];
|
|
} elseif (false === $env = getenv($name)) {
|
|
// getenv not thread safe
|
|
return null;
|
|
}
|
|
|
|
return $env;
|
|
}
|
|
}
|