PHP：firebase/php-jwt生成jwt和验证

composer require firebase/php-jwt

<?php
require __DIR__ . '/../vendor/autoload.php';
use Firebase\JWT\JWT;
use Firebase\JWT\ExpiredException;
$key = "example_key";
$time = time();
$data = [
  'id'=>  1,
  'username'=> 'Tom'
];
$payload = array(
    "iat" => $time, // 签发时间
    "ext" => $time, // 过期时间
    "data"=> $data  // 携带数据
);
$jwt = JWT::encode($payload, $key);
echo $jwt;
// 正常的jwt
$decoded = JWT::decode($jwt, $key, array('HS256'));
print_r($decoded);
//[iat] => 1622605592
//[ext] => 1622605592
//[data] => stdClass Object
//    (
//        [id] => 1
//        [username] => Tom
//    )
// 异常捕获
$jwt = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpYXQiOjE2MjI2MDUzNDUsImV4dCI6MTYyMjYwNTM0NSwiZGF0YSI6eyJpZCI6MSwidXNlcm5hbWUiOiJUb20ifX0.Jgp1JBPngj0lgmFpMty7C76mWwtFQVoLvQtGsN5LcpgstdClass Object';
try {
    $decoded = JWT::decode($jwt, $key, array('HS256'));
}catch (ExpiredException $e){
    echo 'token已过期';
}catch (\Exception $e){
    echo 'token无效';
}
print_r($decoded);