Domain Meta Validation - laravel

Question

I have a code set on Laravel. This is doing dns verification, I want to verify a specific field in the meta tag I want.
Example code
public function verifyDomainDns()
{
$fqdn = sprintf('%s.%s', $this->getVerificationTxtName(), $this->name);
$results = collect(dns_get_record($fqdn, DNS_TXT));
$results = $results->where('type', 'TXT')
->where('txt', $this->verification_token);
$this->domain_verified = $results->isEmpty() ? self::UNVERIFIED : self::VERIFIED;
$this->save();
}
verification_token Auto-generated numbers registered in database
The meta tag I want to verify.
<meta name="book" content="verification_token" />

Answer 1

There is no correlation between what your code is already doing and what you want to do.
One way you can achieve this is to get the contents of the URL with something like file_get_contents(), which will result in you getting the HTML content of the URL.
Once you have this, you can use something like DOMXpath to parse it and get the meta tag's contents.
$html = file_get_contents('https://example.com');
$dom = new DomDocument();
$dom->loadHTML($html);
$xpath = new DomXPath($dom);
$contents = $xpath->query('/html/head/meta[#name="book"]/#content');
if ($contents->length === 0) {
echo 'No tag found';
} else {
foreach ($contents as $content) {
echo $content->value;
}
}