PHP/Network/checkdnsrr

checkdnsrr-2.php

   <source lang="html4strict">

<?php

  $email = "ceo@example.ru";
  $domain = explode("@",$email);
  
  $valid = checkdnsrr($domain[1], "ANY");
  if($valid) echo "The domain has an MX record!";
  else echo "Cannot locate MX record for $domain[1]!";

?>

 </source>
   
  

checkdnsrr.php

   <source lang="html4strict">

<?php

  $recordexists = checkdnsrr("example.ru", "ANY");
  if ($recordexists) echo "The domain name has been taken. Sorry!";
  else echo "The domain name is available!";

?>

 </source>