scrape-site-images-by-sitemap.php

<?php

// URL of the sitemap
$sitemapUrl = "https://www.example.com/sitemap.xml";

// Load the sitemap XML into a SimpleXML object
$sitemapXml = simplexml_load_file($sitemapUrl);

// Iterate over each URL in the sitemap
foreach ($sitemapXml->url as $url) {
    // Get the page URL
    $pageUrl = $url->loc;

    // Create a new DOM document
    $doc = new DOMDocument();

    // Load the website HTML into the DOM
    @$doc->loadHTMLFile($pageUrl);

    // Get all image elements
    $imageTags = $doc->getElementsByTagName('img');

    // Iterate over each image
    foreach ($imageTags as $tag) {
        // Get the image source URL
        $imgUrl = $tag->getAttribute('src');

        // Download the image
        file_put_contents('images/' . basename($imgUrl), file_get_contents($imgUrl));
    }
}