https://blog.clarence.tw/2023/12/31/%e4%bd%bf%e7%94%a8-google-location-sharing-%e4%bf%ae%e6%94%b9%e9%a0%90%e8%a8%ad%e8%aa%9e%e8%a8%80%e7%82%ba%e7%b9%81%e9%ab%94%e4%b8%ad%e6%96%87%ef%bc%88zh-tw%ef%bc%89-php-%e7%89%88%e6%9c%ac/