Decode JSON Web Token with Public Key

decode-jwt-web-token.php

<?php

// Example of decoding JWT Web Token with public key
// Package: https://github.com/firebase/php-jwt

require_once 'vendor/autoload.php';

use \Firebase\JWT\JWT;

$key = "-----BEGIN PUBLIC KEY----- YOUR PUBLIC KEY HERE -----END PUBLIC KEY-----";
$jwt = $_GET['token'];
$decoded = JWT::decode($jwt, $key, array('RS256'));

print_r($decoded);