为了提高性能，用 PHP 扩展实现了一个 JWT (JSON Web Token)

目前 PHP 所有的 JWT 库都是用 PHP 语言编写的，为了提高性能，我基于 openssl 库，用 PHP 扩展实现了一个 JWT

GitHub: https://github.com/cdoco/php-jwt

例子

$key = "example-hmac-key";
$claims = array(
    "data" => [
        "name" => "ZiHang Gao",
        "admin" => true
    ],
    "iss" => "http://example.org",
    "sub" => "1234567890",
);

// default HS256 algorithm
$token = jwt_encode($claims, $key);

echo $token . PHP_EOL;
//eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.
//eyJpc3MiOiJodHRwOlwvXC9leGFtcGxlLm9yZyIsInN1YiI6IjEyMzQ1Njc4OTAiLCJuYW1lIjoiWmlIYW5nIEdhbyIsImFkbWluIjp0cnVlfQ.
//2lFeBTsRegsjXiBCZNkW41KFlsZPSFu7KTsyAM9lUiQ

print_r(jwt_decode($token, $key));
/**
Array
(
    [data] => Array
        (
            [name] => ZiHang Gao
            [admin] => 1
        )

    [iss] => http://example.org
    [sub] => 1234567890
)
*/