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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** |
| 6 | * Fast Forward Development Tools for PHP projects. |
| 7 | * |
| 8 | * This file is part of fast-forward/dev-tools project. |
| 9 | * |
| 10 | * @author Felipe Sayão Lobato Abreu <github@mentordosnerds.com> |
| 11 | * @license https://opensource.org/licenses/MIT MIT License |
| 12 | * |
| 13 | * @see https://github.com/php-fast-forward/ |
| 14 | * @see https://github.com/php-fast-forward/dev-tools |
| 15 | * @see https://github.com/php-fast-forward/dev-tools/issues |
| 16 | * @see https://php-fast-forward.github.io/dev-tools/ |
| 17 | * @see https://datatracker.ietf.org/doc/html/rfc2119 |
| 18 | */ |
| 19 | |
| 20 | namespace FastForward\DevTools\Environment; |
| 21 | |
| 22 | /** |
| 23 | * Reads environment variables through PHP's native runtime. |
| 24 | */ |
| 25 | class Environment implements EnvironmentInterface |
| 26 | { |
| 27 | /** |
| 28 | * Reads an environment variable or the current environment map. |
| 29 | * |
| 30 | * @param string|null $name the environment variable name, or null to read the current environment map |
| 31 | * @param string|null $default the value returned when the named variable is not defined |
| 32 | * |
| 33 | * @return array<string, string>|string|null the environment map, variable value, or default fallback |
| 34 | */ |
| 35 | public function get(?string $name = null, ?string $default = null): array|string|null |
| 36 | { |
| 37 | if (null === $name) { |
| 38 | $environment = getenv(); |
| 39 | |
| 40 | return \is_array($environment) ? $environment : []; |
| 41 | } |
| 42 | |
| 43 | $value = getenv($name); |
| 44 | |
| 45 | if (false === $value) { |
| 46 | return $default; |
| 47 | } |
| 48 | |
| 49 | return $value; |
| 50 | } |
| 51 | } |