php readdir reading files

i'm controlling following formula loop by office imitation out names files. however, files displayed. i have attempted controlling clearstatcache effect.

    $str = '';
    $ignore = array('.', '..');

    $dh = @opendir( $path );
    ($dh === false)
    {
        // error
    }

    $file = readdir( $dh );
    while( $file !== fake )
    {
        (in_array($file, $ignore, true)) { break; }
        $str .= $file."\n";
        $file = readdir( $dh );
    }

here's essence office right now:

root.auth  test1.auth  test2.auth  test3.auth  test5.auth

however, test5.auth does appear. i rename test4.auth does appear. i rename test6.auth does appear. arguable intrepidity - i rename several times still won't arrangement adult unless i rename test6.auth.

what earth happening?

i'm controlling arch linux (kernel 2.6.26-arch) php chronicle 5.2.6 apache/2.2.9 suhosin-patch. filesystem ext3 i'm controlling fam 2.6.10.