require_once "HTTP/Request.php";

$req =& new HTTP_Request("http://upload.example.com/upload.php");
$req->setBasicAuth("johndoe", "foo");
$req->setMethod(HTTP_REQUEST_METHOD_POST);

$result = $req->addFile("johndoe-txt.pdf", "/home/johndoe/text.pdf");
if (PEAR::isError($result)) {
    echo $result->getMessage();
} else {

    $response = $req->sendRequest();

    if (PEAR::isError($response)) {
        echo $response->getMessage();
    } else {
        echo $req->getResponseBody();
    }
}