function sahaha_youtube_lazy_shortcode($atts, $content = null) {

    $atts = shortcode_atts(array(
        'id' => '',
    ), $atts);

    $id = trim($atts['id']);

    // Nếu không có id thì lấy từ link
    if (empty($id) && !empty($content)) {

        $url = trim(strip_tags($content));

        if (preg_match('/youtu\.be\/([a-zA-Z0-9_-]{11})/', $url, $matches)) {
            $id = $matches[1];
        } elseif (preg_match('/youtube\.com\/watch.*[?&]v=([a-zA-Z0-9_-]{11})/', $url, $matches)) {
            $id = $matches[1];
        } elseif (preg_match('/youtube\.com\/embed\/([a-zA-Z0-9_-]{11})/', $url, $matches)) {
            $id = $matches[1];
        }
    }

    if (empty($id)) {
        return '';
    }

    $id = esc_attr($id);

    return '
    <div class="youtube-lazy" data-id="' . $id . '">
        <img
            src="https://img.youtube.com/vi/' . $id . '/maxresdefault.jpg"
            onerror="this.src=\'https://img.youtube.com/vi/' . $id . '/hqdefault.jpg\'"
            alt="Video YouTube"
            loading="lazy"
        />
        <div class="play-button"></div>
    </div>';
}
add_shortcode('ytb', 'sahaha_youtube_lazy_shortcode');<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="//internet-starlink.vn/wp-content/plugins/wordpress-seo/css/main-sitemap.xsl"?>
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		<loc>https://internet-starlink.vn/post-sitemap.xml</loc>
		<lastmod>2026-04-13T02:53:22+00:00</lastmod>
	</sitemap>
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		<lastmod>2026-06-13T04:46:16+00:00</lastmod>
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		<lastmod>2025-05-11T07:14:57+00:00</lastmod>
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</sitemapindex>
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