In every function you can set test mode or live mode (($params["TestMode"]==”on” or “off”):

Example:  
if($params["TestMode"]=="on"){
  $url = "http://dev.affordabledomains.co.nz/testlab/api/whmcs/login.php";
}else{
  $url = "http://www.affordabledomains.co.nz/api/whmcs/login.php";
} 

Our Functions:

1. For login in affordabledomains.co.nz you can use login($params).
2. For whois value of a domain you can use whoisNzDomain($params).
3. For registration of a domain you can use registerNzDomain($params).
4. For Update name server of a domain you can use nsSaveNzDomain($params).
5. For update contact details of a domain you can use contactSaveNzDomain($myparams).
6. For renew of a domain you can use renewNzDomain($params).
7. For transfer of a domain you can use transNzDomain($params).
8. For new UDAI domain you can use getUdaiNzDomain($params).

The whoisNzDomain($params) function returns an array . In this you can get all information of a domain. All others function return a string.

For a successful response the return string format is: - “success: The message details”.
For an error response the return string format is: - “unsuccess: The message details”.
So you can split with (:) the return string for the message details.

Our fields details:

#For username and password:

1. $postfields["txtLoginUname"] = “test”;
2. $postfields["txtLoginPwd"] = “test”;

#For Registrant contact:

1. $postfields["txtFName"] = “”; //first name
2. $postfields["txtLName"] = “”; //last name
3. $postfields["txtAdd1"] = “ ”; //address 1
4. $postfields["txtAdd2"] = “ ”; //address 2
5. $postfields["txtCity"] = “ ”; //city
6. $postfields["txtProv"] = “ ”; //province
7. $postfields["txtPostal"] = “ ”; //postal code
8. $postfields["cboCountry"] = “ ”; //country code
9. $postfields["txtEmail"] = “ ”; //Email address
10. $postfields["txtPh1"] = “ ”; //phone country code
11. $postfields["txtPh2"] = “ ”; //phone area code
12. $postfields["txtPh3"] = “ ”; //phone local number
13. $postfields["txtfax1"] = " "; //fax country code
14. $postfields["txtfax2"] = " "; //fax area code
15. $postfields["txtfax3"] = " "; //fax local number

#For Admin contact:

1. $postfields["billFName"] = “”; //first name
2. $postfields["billLName"] = “”; //last name
3. $postfields["billAdd1"] = “ ”; //address 1
4. $postfields["billAdd2"] = “ ”; //address 2
5. $postfields["billCity"] = “ ”; //city
6. $postfields["billProv"] = “ ”; //province
7. $postfields["billPostal"] = “ ”; //postal code
8. $postfields["cboBillCountry"] = “ ”; //country code
9. $postfields["billEmail"] = “ ”; //Email address
10. $postfields["billPh1"] = “ ”; //phone country code
11. $postfields["billPh2"] = “ ”; //phone area code
12. $postfields["billPh3"] = “ ”; //phone local number
13. $postfields["billfax1"] = " "; //fax country code
14. $postfields["billfax2"] = " "; //fax area code
15. $postfields["billfax3"] = " "; //fax local number

#For Technical contact:

1. $postfields["techFName"] = “”; //first name
2. $postfields["techLName"] = “”; //last name
3. $postfields["techAdd1"] = “ ”; //address 1
4. $postfields["techAdd2"] = “ ”; //address 2
5. $postfields["techCity"] = “ ”; //city
6. $postfields["techProv"] = “ ”; //province
7. $postfields["techPostal"] = “ ”; //postal code
8. $postfields["cboTechCountry"] = “ ”; //country code
9. $postfields["techEmail"] = “ ”; //Email address
10. $postfields["techPh1"] = “ ”; //phone country code
11. $postfields["techPh2"] = “ ”; //phone area code
12. $postfields["techPh3"] = “ ”; //phone local number
13. $postfields["techfax1"] = " "; //fax country code
14. $postfields["techfax2"] = " "; //fax area code
15. $postfields["techfax3"] = " "; //fax local number

#For domain name server(FQDN) or IP4Addr or IP6Addr:

1. $postfields["txthostname1"] = “”;
2. $postfields["txthostname2"] = “”;
3. $postfields["txthostname3"] = “ ”;
4. $postfields["txthostname4"] = “ ”;
5. $postfields["txtip1"] = “ ”;
6. $postfields["txtip2"] = “ ”;
7. $postfields["txtip3"] = “ ”;
8. $postfields["txtip4"] = “ ”;
9. $postfields["txtv6ip1"] = “ ”;
10. $postfields["txtv6ip2"] = “ ”;
11. $postfields["txtv6ip3"] = “ ”;
12. $postfields["txtv6ip4"] = “ ”;

#For domain name, UDAI, Renew terms:

1. $postfields["txtdomainname"] = “”;
2. $postfields["txtUDAI"] = “”;
3. $postfields["cboRenew"] = “ ”; (in months)

Download our WHMCS module which contains the functions here
All the functions are written in PHP language. If you use other language, please make same functions.