<?php
$user = 'user_name'; // Username 
$pass = 'password';
$host = 'ServerIP / Hostname';

$url = 'https://'.rawurlencode($user).':'.rawurlencode($pass).'@'.$host.':2003/index.php?api=json&act=sso'; 

$post = array('noip' => 1);

// Set the curl parameters 
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

if(!empty($post)){
	curl_setopt($ch, CURLOPT_POST, 1);
	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post));
}

// Get response from the server. 
$resp = curl_exec($ch);
if(!empty(curl_error($ch))){
	echo curl_error($ch); die();
}

// The response will hold a string as per the API response method. 
$res = json_decode($resp, true);

echo "<pre>";
print_r($res['done']['url']);
echo "</pre>";