服务号获取已关注用户的基本信息

/*
     * 获取token
     */
    private function get_access_token(){
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appleid}&secret={$this->secret}";
        $str = file_get_contents($url);
        $arr = json_decode($str,true);
        if(isset($arr['access_token']) && $arr['access_token'] != ''){
            return $arr['access_token'];
        }else{
            return '';
        }
    }

    /*
     * 获取用户信息
     */
    private function user_info($openid){
        $token = $this->get_access_token();
        $url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token={$token}&openid={$openid}&lang=zh_CN";
        $str = file_get_contents($url);
        $arr = json_decode($str,true);
        return $arr;
    }

 参考：https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140183

　　　　https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140839