用PHP生成站点地图sitemap

它会自动抓取该页面上的所有链接地址，形成一个sitemap的xml格式文件。
不多说，直接上代码。把链接改成自己的博客主页。

<?php
function fetch_links_from_url($url) {
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
    $html = curl_exec($curl);
    curl_close($curl);

    $dom = new DOMDocument();
    @$dom->loadHTML($html);

    $links = [];
    $anchor_tags = $dom->getElementsByTagName('a');
    foreach ($anchor_tags as $tag) {
        $href = $tag->getAttribute('href');
        // Filter out non-URL and non-HTTP links
        if ($href && preg_match('/^(https?|\/\/)/', $href)) {
            $links[] = $href;
        }
    }

    return $links;
}

// Enter the URL of the webpage you want to scrape links from
$target_url = 'https://www.663333.xyz'; // Replace with your target URL

$links = fetch_links_from_url($target_url);

// Output the links in sitemap format
header('Content-Type: text/xml');
echo '<?xml version="1.0" encoding="UTF-8"?>';
?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
    <?php foreach ($links as $link) { ?>
    <url>
        <loc><?= htmlspecialchars($link) ?></loc>
    </url>
    <?php } ?>
</urlset>