微信

——————————微信公从号授权

 $code = input('code');

            

            if($code != ''){

                $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=".config('appid')."&secret=".config('appsecret')."&code=$code&grant_type=authorization_code";

                $result = https_request($url);

                $jsoninfo = json_decode($result, true);

                if(!empty($jsoninfo['openid'])){

                    $openid = $jsoninfo['openid'];

                    cookie('openid',$openid,1000);

                    $res = $this->up_user_info($openid,$jsoninfo['access_token']);

                }

            }

            if (cookie('openid') == '') {

                $url = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];

                $url2 = urlencode($url);

                header("Location:https://open.weixin.qq.com/connect/oauth2/authorize?appid=".config('appid')."&redirect_uri=".$url2."&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect");

                exit;

            }