php-jwt

use Co\JWT\JWT;

$key = "test_key";
$token = [
"iss" => "https://www.baidu.com",
"aud" => "https://www.qq.com",
"iat" => 1356999524,
"nbf" => 1357000000
];
$jwt = new JWT();
$encode = $jwt->encode($token, $key);
$decode = $jwt->decode($encode, $key, ['HS256']);

print_r($decode);