php 做微信认证登陆 返回错误 Trying to get property of non-object 已经添加了白名单和 网页授权，不知道是不是我代码问题，求解答。附上错误代码：

public function getOpenId(){

$openid=cookie('openid');

if($openid){

return $openid;

}else{

if (in_wechat()) {

$redirect_uri = request()->url(true);

$AccessCode = $this->getAccessCode($redirect_uri, "snsapi_base");

if ($AccessCode !== FALSE) {

// 获取accesstoken和openid

$Result = $this->getAccessToken($AccessCode);

$openid = $Result->openid;

$AccessToken = $Result->access_token;

cookie('openid',$openid);

return $openid;

}

} else {

return false;

}

}

}

private function getAccessToken($code){

$RequestUrl = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->config['appid']."&secret=".$this->config['appsecret']."&code=" . $code . "&grant_type=authorization_code";

$Result = json_decode(Curl::get($RequestUrl), true);

if(isset($Result['errcode'])){

return 'get access token fail';

}

$_return = new \stdClass();

echo $_return->access_token = $Result['access_token'];

$_return->openid = $Result['openid'];

return $_return;

}

private function getAccessCode($redirect_uri, $scope) {

$get=input('param.');

$request_access_token_url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$this->config['appid']."&redirect_uri=http%3a%2f%2fjfshop.gxwdbg.com%2fmobile&response_type=code&scope=snsapi_userinfo#wechat_redirect";

if (empty($get['code'])) {

// 未授权而且是拒绝

if (!empty($get['state'])) {

return FALSE;

} else {

// 未授权

$redirect_uri = urlencode($redirect_uri);

$RequestUrl = str_replace("[REDIRECT_URI]", $redirect_uri, $request_access_token_url);

$RequestUrl = str_replace("[SCOPE]", $scope, $RequestUrl);

// 获取授权

header("location:" . $RequestUrl);

exit(0);

}

} else {

// 授权成功 返回 access_token 票据

return $get['code'];

}

}