Developer
# CORS for PHP (using the Symfony HttpFoundation)
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[](https://packagist.org/packages/fruitcake/php-cors)
[](https://packagist.org/packages/fruitcake/php-cors)
[](https://fruitcake.nl/)
Library and middleware enabling cross-origin resource sharing for your
http-{foundation,kernel} using application. It attempts to implement the
[W3C Recommendation] for cross-origin resource sharing.
[W3C Recommendation]: http://www.w3.org/TR/cors/
> Note: This is a standalone fork of https://github.com/asm89/stack-cors and is compatible with the options for CorsService.
## Installation
Require `fruitcake/php-cors` using composer.
## Usage
This package can be used as a library. You can use it in your framework using:
- [Stack middleware](http://stackphp.com/): https://github.com/asm89/stack-cors
- [Laravel](https://laravel.com): https://github.com/fruitcake/laravel-cors
### Options
| Option | Description | Default value |
|------------------------|------------------------------------------------------------|---------------|
| allowedMethods | Matches the request method. | `[]` |
| allowedOrigins | Matches the request origin. | `[]` |
| allowedOriginsPatterns | Matches the request origin with `preg_match`. | `[]` |
| allowedHeaders | Sets the Access-Control-Allow-Headers response header. | `[]` |
| exposedHeaders | Sets the Access-Control-Expose-Headers response header. | `[]` |
| maxAge | Sets the Access-Control-Max-Age response header. | `0` |
| supportsCredentials | Sets the Access-Control-Allow-Credentials header. | `false` |
The _allowedMethods_ and _allowedHeaders_ options are case-insensitive.
You don't need to provide both _allowedOrigins_ and _allowedOriginsPatterns_. If one of the strings passed matches, it is considered a valid origin. A wildcard in allowedOrigins will be converted to a pattern.
If `['*']` is provided to _allowedMethods_, _allowedOrigins_ or _allowedHeaders_ all methods / origins / headers are allowed.
> Note: Allowing a single static origin will improve cacheability.
### Example: using the library
```php
<?php
use Fruitcake\Cors\CorsService;
$cors = new CorsService([
'allowedHeaders' => ['x-allowed-header', 'x-other-allowed-header'],
'allowedMethods' => ['DELETE', 'GET', 'POST', 'PUT'],
'allowedOrigins' => ['http://localhost', 'https://*.example.com'],
'allowedOriginsPatterns' => ['/localhost:\d/'],
'exposedHeaders' => ['Content-Encoding'],
'maxAge' => 0,
'supportsCredentials' => false,
]);
$cors->addActualRequestHeaders(Response $response, $origin);
$cors->handlePreflightRequest(Request $request);
$cors->isActualRequestAllowed(Request $request);
$cors->isCorsRequest(Request $request);
$cors->isPreflightRequest(Request $request);
```
## License
Released under the MIT License, see [LICENSE](LICENSE).
> This package is split-off from https://github.com/asm89/stack-cors and developed as stand-alone library since 2022
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: