PHP-JWT

A little PHP util to generate and validate JSON Web Tokens (JWTs)

Generate token

require 'jwt.php';
  
$payload = array(
  'id' => '1001',
  'email' => '[email protected]');
        
$expiry = time() + (3 * 3600);
$secret = 'somesecretkey';
        
$token = generate_token($payload, $expiry, $secret);
echo $token;

Validate token

This function simply validates the JWT and returns a response code based on signature and expiry time. See Response codes for details.

$result = validate_token($token, $secret);
echo $result;

Validate token and get payload data post successful validation

This function validates the JWT and returns the payload array in case of successful validation. Returns a response code otherwise. See Response codes for details.

$result = validate_token_with_payload($token, $secret);
echo $result;

Response codes

Response	Reason
ERR_TOKEN_EXPIRED	Token has expired
ERR_TOKEN_INVALID	Token is invalid (signature didn't match)
TOKEN_VALID	Token is valid and active