update

app/libs/wechat/auth/Gateways/General.php

@@ -187,7 +187,7 @@ class General extends Base
             'appid'      => $this->appId,
             'secret'     => $this->secret
         ]));
-
+        var_dump($res);
         $data = json_decode($res, true);
         if (isset($data['access_token'])) {
             $token = $data['access_token'];