Threader::current()->countToOneMillion();

if(Threader::current()->pid())
{
    $old = 0;

    while(Threader::current()->running())
    {
        $up_to = Threader::current()->upTo();

        if(($up_to - $old)>1000)
        {
            echo($up_to."\n");
            $old = $up_to;
        }
    }

    echo("All done!\n");
}