open dir to list contents

[Lassie]

I am retieving the contents of a dir for a download.
$hash holds the folder
The code is
[code]
//open the dir
$folder= opendir('C:pick_up/$hash');
//initialise an array to store the contents
$files = array();
//loop through the directory
while(false !==($item = readdir($folder)))
{
$files[] = $item;
}
closedir($folder);
echo '<pre>';
print_r ($files);
echo '</pre>';
[/code]
I dont get any output and my debugger goes into a never ending loop.
How can I debug this?

[Lassie]

Hi there I have solved the immediate prolem. thanks