$recs = dns_get_record("kirkagacradyo.com",  DNS_NS );

foreach ($recs as $type => $value){
$domain_sonuc[]=$value["target"];
}

if ( in_array("dns1.siteism.com",$domain_sonuc) AND in_array("dns2.siteismi.com",$domain_sonuc)){ 
echo "DNS Doğru";
}else{ 
echo "DNS Yanlış";
};