如何使用PHP获取网站的标题和描述？

function getTitleAndDescription($url) {
    $doc = new DOMDocument();
    @$doc->loadHTML(file_get_contents($url));
    $title = $doc->getElementsByTagName('title')->item(0)->nodeValue;
    $description = '';
    $metas = $doc->getElementsByTagName('meta');
    for ($i = 0; $i < $metas->length; $i++) {
        $meta = $metas->item($i);
        if ($meta->getAttribute('name') == 'description') {
            $description = $meta->getAttribute('content');
            break;
        }
    }
    return ['title' => $title, 'description' => $description];
}

$url = 'https://www.example.com';
$result = getTitleAndDescription($url);
echo 'Title: ' . $result['title'] . '<br>';
echo 'Description: ' . $result['description'];

composer require simplehtmldom/simplehtmldom

require_once 'vendor/autoload.php';

use simplehtmldom\HtmlWeb;

function getTitleAndDescription($url) {
    $client = new HtmlWeb();
    $html = $client->load($url);
    $title = $html->find('title', 0)->plaintext;
    $description = '';
    foreach ($html->find('meta') as $meta) {
        if ($meta->name == 'description') {
            $description = $meta->content;
            break;
        }
    }
    return ['title' => $title, 'description' => $description];
}

$url = 'https://www.example.com';
$result = getTitleAndDescription($url);
echo 'Title: ' . $result['title'] . '<br>';
echo 'Description: ' . $result['description'];