appid = C('WECHAT_OAUTH2.APPID');        $this->appSecret = C('WECHAT_OAUTH2.APPSECRET');        // 缓存起来        if (!session('token')) {            $this->WechatAuth = new WechatAuth($this->appid, $this->appSecret);//初始化WechatAuth类            $WechatAuth = $this->WechatAuth;            $token = $WechatAuth->getAccessToken();            session(array('expire' => $token['expires_in']));//设置过期时间            session('token', $token['accsess_token']);//缓存token            $this->accsess_token = $token;        } else {            $token = session('token');            $this->WechatAuth = new WechatAuth($this->appid, $this->appSecret, $token);//初始化WechatAuth类            $this->accsess_token = $token;//缓存token        }    }    public function test()    {        echo 'selectGroupsGet';    }    //获取所有用户组    public function selectGroupsGet()    {        header('Content-type:text/html;charset=utf-8;');        $WechatAuth = $this->WechatAuth;        $data = $WechatAuth->groupsGet();        var_dump($data);    }    //创建一个分组    public function createGroup()    {        header('Content-type:text/html;charset=utf-8;');        $WechatAuth = $this->WechatAuth;        $data = $WechatAuth->groupsCreate('万少波分组');        var_dump($data);    }    //查询一下指定用户的分组    public function GroupId()    {        $m = M('users');        $user = $m->find(3);        $openid = $user['openid'];        $WechatAuth = $this->WechatAuth;        $data = $WechatAuth->groupsGetid($openid);        var_dump($data);    }}

 带参数的二维码：

// 生成带参数的二维码    public function createCode()    {        $WechatAuth = $this->WechatAuth;        $ticket = $WechatAuth->qrcodeCreate("10086"); //返回临时票据ticket        $src = $WechatAuth->showqrcode($ticket['ticket']); //根据ticket获取二维码URL        echo "";    }