Cannot retrieve api.php results via cURL

[turbofandude]

Hello,

 

I posted this over on Stack Overflow and cannot seem to get an answer, and I'd appreciate any help someone could offer. The question was:

 

I am trying to use the WHMCS API to connect a third party script to it. I have created the third party's script as follows, however, when I try to connect to my site using HTTPS, I get this error: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

 

If I use HTTP, I get a 404 error. The code is as follows (and yes, that is my actual domain, since I figured the SSL's specifics might matter):

 

$email = $_GET["email"];
$password = $_GET["password"];
if(filter_var($email, FILTER_VALIDATE_EMAIL) && strlen($password) > 0) {
   $postfields["username"] = $apiusername;
   $postfields["password"] = $apipassword;
   $postfields["action"] = "validatelogin";
   $postfields["email"] = $email;
   $postfields["password2"] = $password;

   $ch = curl_init();
   curl_setopt($ch, CURLOPT_URL, "https://tfdidesign.com/accounts/includes/api.php");
   curl_setopt($ch, CURLOPT_POST, 1);
   curl_setopt($ch, CURLOPT_TIMEOUT, 100);
   curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);   
   curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
   $data = curl_exec($ch);
   if(curl_error($ch))
       echo(curl_error($ch));
   curl_close($ch);     
   $data = explode(";",$data);
   foreach ($data AS $temp) {
       $temp = explode("=",$temp);
       $results[$temp[0]] = $temp[1];
   }
}
else
   die("INVALID_CREDENTIALS");