errore usermanager

[69-KaMa-69]

ma sei su php4?
se si modifica così:

<?php

class _Http
{
    function redirect($page)
    {
        $host  = $_SERVER['HTTP_HOST'];
        $uri  = rtrim(dirname($_SERVER['PHP_SELF']), '/');
        $extra = $page;
        header("Location: [url]http://[/url]$host$uri/$extra");
        exit;
    }
    function refresh($page,$time=2)
    {
        $extra = $page;
        header("Refresh: $time; URL=\"$extra\"");
    }

}

?>