Redireccionar despues de evento

[japh76]

Yo tengo el siguiente Script:

<?php

$url = "http://www.venedata.com/clientes/includes/api.php"; # URL to WHMCS API file

$username = "username"; # Admin username goes here
$password = "password"; # Admin password goes here

$Minvoiceid = $_GET['invoiceNumber'];
$Mtransid = $_GET['confirmationNumber'];
$Mamount = $_GET['totalAmount'];

$postfields["username"] = $username;
$postfields["password"] = md5($password);
$postfields["action"] = "addinvoicepayment";
$postfields["invoiceid"] = $Minvoiceid;
$postfields["transid"] = $Mtransid;
$postfields["amount"] = $Mamount;
$postfields["gateway"] = "mercantil";

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $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);



$data = explode(";",$data);

foreach ($data AS $temp) {

$temp = explode("=",$temp);

$results[$temp[0]] = $temp[1];

}



if ($results["result"]=="Operacion Exitosa") {

# Result was OK!

} else {

# An error occured

echo "El Siguiente Error ha Ocurrido: ".$results["message"];

}



?>

Quisiera hacer lo siguiente, que en la respuesta correcta me redireccione a una pagina "X"

Agradeciendo la ayuda que me puedan brindar

Saludos