php自动生成sitemap

include_once Root_Path . "/vendor/autoload.php";
use Medoo\Medoo;
$db = new Medoo([
'database_type' => 'mysql',
'database_name' => 'menghuiguli',
'server' => 'localhost',
'username' => 'root',
'password' => 'root',
]);
$str = "<ul>";
$articles = $db->select(&#39;article&#39;,"*");
foreach ($articles as $k => $v) {
$str .= &#39;<li>
<div class="T1"><a href="https://www.80shihua.com/archives/&#39;.$v[&#39;id&#39;].&#39;" title="&#39;.$v[&#39;name&#39;].&#39;">&#39;.$v[&#39;name&#39;].&#39;</a></div>
<div class="T2">2019-02-02T10:16:23+08:00</div>
<div class="T3">monthly</div>
<div class="T4">0.5</div>
</li>&#39;;
}
$str .= &#39;</ul>&#39;;
file_put_contents(&#39;/sitemap.html&#39;, $str);