Får fejl "warning filesize"

<?php

//phpinfo();

//sætter lige en variabel som referer til siden selv. Istedet for at hardcode fil navnet.
$selv = $_SERVER["PHP_SELF"];


if($_REQUEST['dir'])
{
        $dir = $_REQUEST['dir'];
    $sti = "";

   
    // Første gang sættes link roden
    print "<a href=\"" . $selv . "?dir=" . $sti . "\">/</a>&nbsp;";
   


    $list = spliti("/", $dir,20);

    for ($i = 0; count($list) > $i ; $i++)
    {
   
        //Skriver kun et link hvis der findes en værdi i arrayet (split giver altid den første som "")
        if ($list[$i] <> "" && $list[$i] <> ".")
        {

            $sti = $sti . "/" . $list[$i];
       
            print "<a href=\"" . $selv . "?dir=" . $sti . "/\">" . $list[$i] . "/</a>&nbsp;";   
        }
   
        // Sikkerhed for loop og misbrug.
        if ($i == 100 ) break;
    }
   
    //Skal fjerne.. kun af hensyn til overskuelighed i test fasen.
    print "<br /><br /><hr /><br /><br />";
}



$pdir = $_REQUEST["pdir"];


//$pathdir = str_replace("&#92", "/", $pathdirtemp);



$serverroot = $_SERVER['DOCUMENT_ROOT'];
$includepath = $serverroot . "/ekintra/myconf.php";
include($includepath);
mysql_connect("localhost",$dbuser,$dbpass) or die(mysql_error());
mysql_select_db("ekintra") or die(mysql_error());





//mysql_query("INSERT INTO fil_metadata (filnavn,beskrivelse) VALUES ('index.php','beskrivelse')");

$sql = "SELECT filnavn, beskrivelse FROM fil_metadata ORDER BY filnavn";
$qh = mysql_query( $sql ) or die( mysql_error() );
$files = array();
while ( $row = mysql_fetch_assoc( $qh ) )
{
  $files[$row['filnavn']] = $row['beskrivelse'];
}



function size_hum_read($size){

$i=0;
  $iec = array(" bytes", " kb", " mb", " gb", "TB", "PB", "EB", "ZB", "YB");
  while (($size/1024)>1) {
  $size=$size/1024;
  $i++;
  }
  return substr($size,0,strpos($size,'.')+4).$iec[$i];
}



print "<table border=1>";
print "<tr><td><b>Mappenavn:</b></td></tr>";



if ($_REQUEST['dir'])
{
$sti = $_REQUEST['dir'];
$pdir = $_REQUEST['dir'];

$sti = str_replace(".","",$sti);

$sti = str_replace('//', '/', $sti);

$path = "./" . $sti;

$path = str_replace('//', '/', $path);

$path2 = "/" . $sti;

//Realpath betyder, at jeg laver en URL.
//Magicpath betyder, at jeg laver en almindelig Windows sti.

$realpath = $path2;


$realpath = str_replace('//', '&', $realpath);
$realpath = str_replace('&&', '&', $realpath);
$realpath = str_replace('&&', '&', $realpath);
$realpath = str_replace('&', '/', $realpath);

//print ($realpath);

$magicpath = $path;

$magicpath = str_replace('//', '&', $magicpath);
$magicpath = str_replace('&&', '&', $magicpath);
$magicpath = str_replace('&&', '&', $magicpath);
$magicpath = str_replace('&', '&#92', $magicpath);
$magicpath = str_replace('/', '&#92', $magicpath);

$magicpath2 = getcwd();
$magicpath3 = $magicpath . "&#92";
$magicpath4 = $magicpath2 . "&#92" . $magicpath3; 

} else

{

$root = "./docs/";

$path = $root;
$pdir = $root;

$realpath = $root;

$magicpath2 = getcwd();
$magicpath4 = $magicpath2;
}

//$pdir = $_REQUEST['pdir'];




print "<br>";


$path = str_replace("./", "./docs/", $path);
$path = str_replace("./docs/docs/", "./docs/", $path);

$dh = opendir($path);
  while (($dir = readdir($dh)) !== false) {
      if ( $dir != "." && $dir != ".." ){
          $file = @fopen("$path/$dir", "r");
                if (!$file){


                $path_and_dir = "$path/$dir";

                $path_and_dir = str_replace('//', '/', $path_and_dir);
                print "<tr>";

                    print "<td><a href='$selv?dir=$path_and_dir'>$dir</a></td>";
                print "</tr>";
                }
      }
  }
closedir($dh);

print "</table>";

print "<br>";

print "<table border=1>";
print "<tr><td><b>Filnavn:</b></td><td><b>Størrelse:</b></td><td><b>Oprettet:</b></td><td><b>Beskrivelse:</b></td><td>&nbsp</td></tr>";


$dh = opendir($path);
  while (($dir = readdir($dh)) !== false) {
      if ( $dir != "." && $dir != ".." ){
          $file = @fopen("$path/$dir", "r");
                if ($file){


$filstorrelse = size_hum_read(filesize($dir));
$filtid = date("F d Y H:i:s.",filectime($dir));

//$pathdirtemp = $path."&#92".$dir;               


$magicpath4 = stripslashes($magicpath4);

$dotslash = "&#92." . "&#92";
$magicpath4 = str_replace($dotslash, "", $magicpath4);
$magicpath4 = str_replace("&#92", "", $magicpath4);
$pathdir = $magicpath4 . $dir;


//print ($pathdir);


$pathdirtemp = $path."&#92".$dir;               
$standarddir = "/ekintra/dokumenter";


                        $filbeskrivelse= "<td>$files[$pathdir]</td>";



print "<tr>";
                        print "<td><a href='$standarddir$realpath/$dir'>$dir</a></td>";
 
                 
print "<td>$filstorrelse</td><td>$filtid</td>$filbeskrivelse<td><a href='ret_beskrivelse.php?filnavn=$pathdir&pdir=$pdir'>Ret beskrivelse</a></td>";

//$filbeskrivelse = "hallo";
                 
                }

print "</tr>";


      }
  }
closedir($dh);

print "</table>";
?>