API WHMCS domainregister don't work

[aairedes]

Hello everybody:

 

I'm using the API of WHMCS and it's works all that i do.

 

But domainregister don't work. I want to send to register the id of domain that i want to register.

 

My code is:

 

$postfields = array();

$postfields["username"] = "xxx";

$postfields["password"] = "xxx";

$postfields["accesskey"] = "xxx";

 

$postfields["action"] = "domainregister";

$postfields["domainid"] = 623; // id of the domain

 

foreach($params as $k => $v)

$postfields[$k] = utf8_encode($v);

 

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $this->url);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_TIMEOUT, 100);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);

$data = curl_exec($ch);

curl_close($ch);

 

The problem is $data is always in blank. No error. No success. Always in blank.

 

¿Need i another parameter in domainregister? ¿Do you have some example to send the domain to the register?

 

I expect your answer. Thank you very much.