php实现新浪微博授权登录

第一步：

前往微博开放平台申请应用，地址：http://open.weibo.com/，需要企业账号并审核通过。（微博授权审核是需要在你的web或者app上需要有微博登陆的按钮，否者审核不会通过）

拿到App Key和App Secret之后就可以开始调取接口。

第二步：

用户表新加字段存储微博返回信息，如图：

第三步：

去官方下载一个sdk，下载地址 https://github.com/xiaosier/libweibo，直接上代码：

/**
     * 微博授权登录
     */
    public function weiboLogin(){
        $app_key = "3495468843";    //app key

        $app_secret = "7d26eeb3fd46815a1d1ecda1cd786d29";    //app secert

        $my_url = "http://".$_SERVER['HTTP_HOST']."/Home/User/weiboLogin";

        //第一步：用户同意授权，获取code
        $code = $_REQUEST["code"];//存放code
        if(empty($code)){
            $url = "https://api.weibo.com/oauth2/authorize?client_id=".$app_key."&response_type=code&redirect_uri=". urlencode($my_url);

            echo("<script> top.location.href='" . $url . "'</script>");
        }

        //第二步：用code换取Access Token
        if(!empty($code)){
            //include_once( 'saetv2.ex.class.php' );
            vendor("Weibo.saetv2"); //引入微博sdk
            $o = new SaeTOAuthV2( $app_key , $app_secret );

            $keys = array();
            $keys['code'] = $code;
            $keys['redirect_uri'] = $my_url;
            try {
                $token = $o->getAccessToken( 'code', $keys ) ;

            }
            catch (OAuthException $e) {

            }

            //第三步，用Access Token获取账号信息
            if ($token) {
                //$_SESSION['token'] = $token;
                //setcookie( 'weibojs_'.$o->client_id, http_build_query($token) );
                $c = new saetclientv2($app_key,$app_secret, $token['access_token']);
                $ms =$c->home_timeline();
                $uid_get = $c->get_uid();
                $uid = $uid_get['uid'];
                $usr_info=$c->show_user_by_id($uid); //微博sdk方法获取用户的信息

                $m = M("Member");
                $data = array();
                $data['sex']              = $usr_info['gender']=='m'?1:2;
                $data['province']      = $usr_info['province'];
                $data['city']             = $usr_info['city'];
                $data['person_name']   = $usr_info['name'];
                $data['xl_openid']     = $usr_info['idstr'];
                $data['xl_img']        = $usr_info['profile_image_url'];
                $data['addtime']       = date("Y-m-d H:i:s", time());
                $data['person_img']       = $usr_info['profile_image_url'];
                $data['signtime']       = date("Y-m-d H:i:s", time());

                $user = M("Member")->where(array("xl_openid"=> $usr_info['idstr']))->find();
                if($user){
                    $res = M("Member")->where(array("xl_openid"=> $usr_info['idstr']))->setField("signtime", date("Y-m-d H:i:s", time()));
                    if($res){
                        //登录成功业务逻辑

                    }else{
                        $this->error("操作异常，拒绝访问！", U('user/login'));
                    }
                }else{
                    $res=$m->add($data);
                    if($res){
                        //登录成功业务逻辑

                    }else{
                        $this->error("操作异常，拒绝访问！", U('user/login'));
                    }
                }

            }else {
                $this->error("授权失败。", U('user/login'));
            }
        }

    }