use Medz\Cors\Cors;

$cors = new Cors($config); // The $config 👉 `config/cors.php` file.
$cors->setRequest($requestType, $request); // The $request is empty array or is `NULL` or $_REQUEST
$cors->setResponse($responseType, $response); // The $response is empty array.
$cors->handle();

$response = $cors->getResponse();

$config = [
    'allow-credentials' => false, // set "Access-Control-Allow-Credentials" 👉 string "false" or "true".
    'allow-headers'      => ['*'], // ex: Content-Type, Accept, X-Requested-With
    'expose-headers'     => [],
    'origins'            => ['*'], // ex: http://localhost
    'methods'            => ['*'], // ex: GET, POST, PUT, PATCH, DELETE
    'max-age'            => 0,
];

use Medz\Cors\Cors;

$cors = new Cors($config);
$cors->setRequest('array', $request);
$cors->setResponse('array', $response);
$cors->handle();

$responseHeadersArray = $cors->getResponse();

use Medz\Cors\Cors;

$cors = new Cors($config);
$cors->setRequest('psr-7', $request);
$cors->setResponse('psr-7', $response);

$response = $cors->getResponse();