using json web tokens with php

jswtphp.php

<?php
 
require './php-jwt/BeforeValidException.php';
require './php-jwt/ExpiredException.php';
require './php-jwt/JWT.php';
require './php-jwt/SignatureInvalidException.php';

use \Firebase\JWT\JWT;

$data=[
    "profileId"=>12345678,
    "createdOn"=>time()
];

$key="secretkey";
// json web token
$jwt=JWT::encode($data,$key);
echo $jwt;

echo "<br />";

// decoding json web token
$decodedJwt=JWT::decode($jwt,$key,array('HS256'));
print_r(((array)$decodedJwt));

?>