cURL and http-equiv="refresh"

Question

thanks for help..

I'm using cURL for submit via POST a PHP file

    $curl = curl_init();
    // Set some options - we are passing in a useragent too here
    curl_setopt_array($curl, array(
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_URL => 'http://www.******.php',
        CURLOPT_TIMEOUT => 5000,
        CURLOPT_POST => 1,
        CURLOPT_POSTFIELDS => array(
            val1 => 3,
            val2 => 1
        )
    ));
$resp = curl_exec($curl);
$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
echo $httpCode;
curl_close($curl);

The php file response with this:

<META HTTP-EQUIV='Refresh' CONTENT='1; URL=/******.pdf'>

My script refresh the page searching for the file .pdf in my domain (error 404).. I want that the script download this file in my server in a specific path with the original name..

Could anyone help me?