How can PHP be used to extract meta tags from a webpage?

To extract meta tags from a webpage using PHP, you can utilize the `get_meta_tags()` function provided by PHP. This function takes a URL as input and returns an associative array containing all the meta tags found on the webpage. You can then access specific meta tags by their keys in the array.

$url = 'https://www.example.com';
$meta_tags = get_meta_tags($url);

// Access specific meta tags
echo $meta_tags['description'];
echo $meta_tags['keywords'];