is_dir not working.

[mandrill]

The is-dir function isn't recognising a directory. here's the code:
[code]<?php

/* Keiths Gallery Project
Purpose: To dynamically list files and directories and display them as galleries on my website
Step one: define variables */
$rootdir="the/directory/i/want/read";
// Step two: generate array of subdirectories of the directory. These will be my galleries organised according to subject matter
$dh=opendir($rootdir);
while ($filename = readdir($dh))
{
$rootdircont[] = $filename;
}
foreach($rootdircont as $image)
{
echo"$image";
var_dump(is_dir($image));
echo"</br>";
}
echo"$</br>";
$counter = 0 ;
foreach ($rootdircont as $file)
{
if ( is_dir($file))
{
$counter ++ ;
echo "$counter: $file</br>";
$galarray[$counter] = $file;
}
}
/* test echo of above */
echo '</br>';
foreach ($galarray as $galdir)
{
echo "$galdir</br>";
}
?>[/code]
here's the output:
[code].bool(true)
..bool(true)
atomfeedbtn.pngbool(false)
readme.txtbool(false)
43things.pngbool(false)
ap-search-go-btn.gifbool(false)
arthurbool(false)      <-------------- This is a directory but its not being recognised as one.
bc80x15gold.gifbool(false)
blogoramabutton.gifbool(false)
button_sm_1.gifbool(false)
deliciousbutt.pngbool(false)
firefox_80x15.pngbool(false)
goblink.gifbool(false)
icon_scotland_80x15.gifbool(false)
index.htmlbool(false)
lcabutton.pngbool(false)
onepointthreebanner.jpgbool(false)
popdexbtn.pngbool(false)
right2writebtn.pngbool(false)
rssfeedbtn.pngbool(false)
scotblogsbtn.gifbool(false)
Thumbs.dbbool(false)
ucrated.pngbool(false)
ucv12title.jpgbool(false)
wika-blogbtn.pngbool(false)
Cloud.pngbool(false)
button6.gifbool(false)
Dawn_Of_Skirmish_v1.6_AI_Mod_Install.exebool(false)
egobutton.pngbool(false)
searchbox-logo-126x32.gifbool(false)
zardozzbtn.pngbool(false)
logo_80x15.gifbool(false)
libertybutt.pngbool(false)
wp-logos-buttons.jpgbool(false)
wp-button-3.pngbool(false)
tn-tiny.gifbool(false)
$
1: .[/code]

Its probably something really stupid but I'd appreciate it if someone could point it out to me, cos I've been staring at it for hours and getting nowhere.
thanks

[Daniel0]

Do the webserver have read permissions to the folder? I am not sure if this could be it, but lets just check it.

[sasa]

[code]change[codevar_dump(is_dir($image));][/code]to[code]var_dump(is_dir($rootdir.'/'.$image));[/code]

[mandrill]

bingo sasa that did it thanks :)