Awesome Open Source
Awesome Open Source


If you are new to JWT or want to refresh your familiarity with it, please check

Latest Version Travis Build Scrutinizer CI Codecov branch StyleCI Software License Donate Tweet

  • Lightweight JSON Web Token (JWT) library for PHP7.
  • If you still use PHP5.6, use version 0.1.2


# PHP7.0+
composer require adhocore/jwt

# PHP5.6
composer require adhocore/jwt:0.1.2

# For PHP5.4-5.5, use version 0.1.2 with a polyfill for


  • Six algorithms supported:
'HS256', 'HS384', 'HS512', 'RS256', 'RS384', 'RS512'
  • kid support.
  • Leeway support 0-120 seconds.
  • Timestamp spoofing for tests.
  • Passphrase support for RS* algos.


use Ahc\Jwt\JWT;

// Instantiate with key, algo, maxAge and leeway.
$jwt = new JWT('secret', 'HS256', 3600, 10);

Only the key is required. Defaults will be used for the rest:

$jwt = new JWT('secret');
// algo = HS256, maxAge = 3600, leeway = 0

For RS* algo, the key should be either a resource like below:

$key = openssl_pkey_new([
    'digest_alg' => 'sha256',
    'private_key_bits' => 1024,
    'private_key_type' => OPENSSL_KEYTYPE_RSA,

OR, a string with full path to the RSA private key like below:

$key = '/path/to/rsa.key';

// Then, instantiate JWT with this key and RS* as algo:
$jwt = new JWT($key, 'RS384');

Pro You dont need to specify pub key path, that is deduced from priv key.

Generate JWT token from payload array:

$token = $jwt->encode([
    'uid'    => 1,
    'aud'    => '',
    'scopes' => ['user'],
    'iss'    => '',

Retrieve the payload array:

$payload = $jwt->decode($token);


$token   = (new JWT('topSecret', 'HS512', 1800))->encode(['uid' => 1, 'scopes' => ['user']]));
$payload = (new JWT('topSecret', 'HS512', 1800))->decode($token);


Can pass extra headers into encode() with second parameter:

$token = $jwt->encode($payload, ['hdr' => 'hdr_value']);

Test mocking

Spoof time() for testing token expiry:

$jwt->setTestTimestamp(time() + 10000);

// Throws Exception.

Call again without parameter to stop spoofing time():


Examples with kid

$jwt = new JWT(['key1' => 'secret1', 'key2' => 'secret2']);

// Use key2
$token = $jwt->encode(['a' => 1, 'exp' => time() + 1000], ['kid' => 'key2']);

$payload = $jwt->decode($token);

$token = $jwt->encode(['a' => 1, 'exp' => time() + 1000], ['kid' => 'key3']);
// -> Exception with message Unknown key ID key3


The library is now marked at version 1.*.* as being stable in functionality and API.



Check adhocore/phalcon-ext.


Coming soon laravel-jwt.


Be aware of some security related considerations as outlined here which can be valid for any JWT implementations.

Get A Weekly Email With Trending Projects For These Topics
No Spam. Unsubscribe easily at any time.
php (16,378
jwt (399
oauth2 (303
php7 (257
jwt-authentication (85
php8 (32
jwt-auth (25
json-web-token (17