php使用JWT

1. 安装：

   composer  require  lcobucci/jwt

2. 代码：

   setIssuer('http://example.com')
                       ->setAudience('http://example.org')
                       ->setId('4f1g23a12aa', true)
                       ->setIssuedAt(time())
                       ->setNotBefore(time() + 60)
                       ->setExpiration(time() + 3600)
                       ->set('user', 'lee')
                       ->getToken();

3. 测试：

   echo $token->getClaim('user').PHP_EOL;
   echo $token.PHP_EOL;

4. 输出：

   lee
   eyJ0eXAiOiJKV1QiLCJhbGciOiJub25lIiwianRpIjoiNGYxZzIzYTEyYWEifQ.eyJpc3MiOiJodHRwOlwvXC9leGFtcGxlLmNvbSIsImF1ZCI6Imh0dHA6XC9cL2V4YW1wbGUub3JnIiwianRpIjoiNGYxZzIzYTEyYWEiLCJpYXQiOjE1Mzg2Nzg2MTIsIm5iZiI6MTUzODY3ODY3MiwiZXhwIjoxNTM4NjgyMjEyLCJ1c2VyIjoibGVlIn0.
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