getimagesize error

[ATLien]

I keep getting this error:
Read Error on line 50
line 50 is:

$ray = getimagesize ($filethumb);

Here is all my code.

$open=opendir($thumb_dir);
echo "<TR><TD align='center'><span class='text'>\nClick to enlarge a photo</span>\n</TR>\n</TD>\n<TABLE align='center' BORDER='0' CELLPADDING='5' CELLSPACING='0'>\n<TR>\n";
while ($file = readdir($open)) {
$filethumb = $dir . "/" . $file;
$ray = getimagesize ($filethumb);
print (" <TD ALIGN='CENTER' VALIGN='MIDDLE'><A HREF=?dir=$dir&name=$name><IMG BORDER='0' {$ray[3]} SRC= $filethumb></A></TD>\n");}
closedir($thumb_dir);

[pyfsapple]

Supposing your code is all right...

Please double check the link to the image file ($filethumb) and the file permission.