Update the Nameservers of a Domain

$endpoint = "https://www.whogohost.com/host/modules/addons/DomainsReseller/api/index.php";
$action = "/domains/example.com/nameservers";
$params = [
    "domain"    => "example.com",
    "nameservers" => [
        "nsa.whogohost.com", // nameserver1
        "nsb.whogohost.com", // nameserver2
        "nsc.whogohost.com", // nameserver3 (optional)
        "nsd.whogohost.com", // nameserver4 (optional)
        "nse.whogohost.com", // nameserver5 (optional)
    ],
 ];

$headers = [
    "username: email@example.com",
    "token: ". base64_encode(hash_hmac("sha256", "1234567890QWERTYUIOPASDFGHJKLZXCVBNM", "email@example.com:".gmdate("y-m-d H")))
];

$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, "{$endpoint}{$action}");
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($params));
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);

$response = curl_exec($curl);
curl_close($curl);