摘要：微信公眾號第三方開發平臺一之前的文章是獲取調用接口的一些基本參數，繼續開發微信開放平臺。

微信公眾號第三方開發平臺(一)

之前的文章是獲取調用接口的一些基本參數，繼續開發微信開放平臺。

    public function tiaozhuan()
    {
        $info = getData("system_config", array("type" => "pre_auth_code"), array(), 1);    ////獲取保存在數據庫中的pre_auth_code
        $pre_auth_code = $info["value"];
        $back_url = "http://www.xxxxxx.com/index.php/$APPID$/callback";   //后臺設置的回調地址，用戶掃完二維碼之后會跳轉到這個連接    
        $url = "https://mp.weixin.qq.com/cgi-bin/componentloginpage?component_appid=wxcda7bf3c4bf44cdc&pre_auth_code=".$pre_auth_code."&redirect_uri=".$back_url;
        header("Location:".$url);
    }

    //保存公眾號信息
    private function saveOpenWeixin()
    {
        //獲取公眾號access
        $info = getData("system_config", array("type" => "component_access_token"), array() , 1); //獲取保存在數據庫中的component_access_token
        $component_access_token = $info["value"];
        $url = "https://api.weixin.qq.com/cgi-bin/component/api_query_auth?component_access_token=".$component_access_token;
        $auth_code = $_GET["auth_code"];
        $post = array(
            "component_appid" => $this->appid,    //應用的appid
            "authorization_code"    => $auth_code,
        );
        $ret=send_post($url, $post);
        $author = json_decode($ret, True);
        //獲取公眾號信息
        $url = "https://api.weixin.qq.com/cgi-bin/component/api_get_authorizer_info?component_access_token=".$component_access_token;
        $authorAppid = $author["authorization_info"]["authorizer_appid"];
        $post = array(
            "component_appid" => $this->appid,
            "authorizer_appid" => $authorAppid,
        );
        $ret = send_post($url, $post);
        $userInfo = json_decode($ret, True);
        
        //公眾號信息
        $authorInfo = $author["authorization_info"];

    }

//獲取授權方的公眾號帳號基本信息
    public function demo6()
    {
        $info = getData("system_config", array("type" => "component_access_token"), array(), 1);  //獲取保存在數據庫中的component_access_token
        $token = $info["value"];
        $url = "https://api.weixin.qq.com/cgi-bin/component/api_get_authorizer_info?component_access_token=".$token;
        $post = array(
            "component_appid" => $this->appid,
            "authorizer_appid" => "xxxxxxxxxx",  //公眾號appid
        );
        $ret = send_post($url, $post);
        $res = json_decode($ret, True);
    }
    
    //微信賬號網頁授權
    public function demo8()
    {
        $appid = "xxxx"; //公眾號的appid
        $redirect = site_url("toupiao/".$appid."/callback");
        //$scope = "snsapi_base";
        $scope = "snsapi_userinfo";   //獲取方式
        $state = "omllz";
        $component_appid = $this->appid;  //應用的appid
        $url = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$appid."&redirect_uri=".$redirect."&response_type=code&scope=".$scope."&state=".$state."&component_appid=".$component_appid."#wechat_redirect";
        header("Location:".$url);
    }

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