How does DiDOM handle scraping of multimedia elements like images or videos?

DiDOM is a PHP library for parsing HTML and working with the DOM (Document Object Model). It is not specifically designed for multimedia scraping but for general-purpose HTML parsing. However, it can be used to extract multimedia elements like images or videos from a web page by querying for the appropriate HTML tags and their attributes.

Here's a basic example of how you might use DiDOM to extract image URLs from a web page:

// First, make sure you've installed DiDOM using Composer
// composer require imangazaliev/didom

require_once 'vendor/autoload.php';

use DiDom\Document;

// Create a new Document instance and load the HTML
$document = new Document('http://example.com', true);

// Find all image elements on the page
$images = $document->find('img');

foreach ($images as $image) {
    // Get the 'src' attribute of each image
    $src = $image->getAttribute('src');
    echo $src . PHP_EOL;
}

To scrape video elements, you can use a similar process, but you'll be looking for video tags and possibly their child source tags, depending on how the video is embedded in the page:

// Create a new Document instance and load the HTML
$document = new Document('http://example.com', true);

// Find all video elements on the page
$videos = $document->find('video');

foreach ($videos as $video) {
    // Get the 'src' attribute of the video if it's directly on the video tag
    $src = $video->getAttribute('src');

    // If the video tag doesn't have a 'src', look for source tags within it
    if (!$src) {
        $sources = $video->find('source');
        foreach ($sources as $source) {
            // Get the 'src' attribute of each source tag
            $src = $source->getAttribute('src');
            echo $src . PHP_EOL;
        }
    } else {
        echo $src . PHP_EOL;
    }
}

Keep in mind that scraping multimedia content like images and videos from websites should be done responsibly and in accordance with the website's terms of service and copyright laws. Many websites prohibit scraping or have specific rules about what content can be scraped and how it can be used.

DiDOM does not handle the downloading of multimedia files; it can only extract the URLs. You would need to use a separate PHP function, like file_get_contents or curl, to download the files after you've extracted their URLs with DiDOM.

For example, to download an image after obtaining its URL:

$imageUrl = 'http://example.com/image.jpg';
$imageContent = file_get_contents($imageUrl);

// Save the image to your local filesystem
file_put_contents('/path/to/save/image.jpg', $imageContent);

Remember to always respect the robots.txt file of the target website and to not overload the server by making too many requests in a short period.