1 安装 ``` composer require firebase/php-jwt ``` 2 用法 ``` use \Firebase\JWT\JWT; $key = "example_key"; $token = array( "iss" => "http://example.org", "aud" => "http://example.com", "iat" => 1356999524, "nbf" => 1357000000 ); $jwt = JWT::encode($token, $key); $decoded = JWT::decode($jwt, $key, array('HS256')); print_r($decoded); $decoded_array = (array) $decoded; JWT::$leeway = 60; // $leeway in seconds $decoded = JWT::decode($jwt, $key, array('HS256')); ``` 3 补充捕获异常 ``` try { $arr = $jwt::decode($token, $key, array('HS256')); } catch (\Exception $e) { // token验证失败 return json(['code' => 0, 'msg' => $e->getMessage()],400)->send(); }catch (ExpiredException $e){ // 过期 return json(['code' => 0, 'msg' => $e->getMessage()],400)->send(); } ```