I feeling like a fool for asking this question, but I've got an unlink() command in a php script on IIS that gives me a "Permission Denied" error. Obviously, I have checked that the file is read/write, and that the containing folder is also read/write. The original file was created by an upload script. I can create files, and I can even overwrite them - but I can't delete (unlink)! I usually work with Apache/Linux, so maybe I'm missing something really obvious. Oh, and I've tried replacing all forward slashes with backslashes... no effect.

Just for completeness, here's my code:

PHP Code:

// $bulletins_directory is set earlier to the correct container directory

$temp = basename($_GET['delete']);
$full_filename = realpath($bulletins_directory . $temp);
if ( file_exists( $full_filename ) ) {
  $delete_worked = unlink( $full_filename );
} 


Can anyone help?

All i can say is unlink will not remove a directory that has files inside it. If this is the case you will have to poll the directory and remove the files then and only then can you remove the dir.

Ibbo

Nah, I'm trying to delete a single file, not a directory. I'm really starting to develop a distaste for IIS to be honest...

Whay hey thats the spirit.
Drop that beast.

Do your scripts run as a particular user. (for instace under apache all my docs belong to user Apache and group Apache. If I attempt to remove files using my UID it fails with permision denied. If i run a script with apache UID it works just fine.


If so the user (script UID) that created it should remove it.

One simple method is to hard code an unlink like below.

PHP Code:


function deltree($dir, $file){
            
        if(file_exists($dir. '/'.$file)){
         if(!unlink($dir . '/'.$file')){
              echo "Not today mate";
          }
        }

} 


Of course thats not efficient but you can play with the idea and see if it gets your files off the sys. Try changing the file param to an array of files to be removed, you can then run it through a loop unlink each file.

Let us know.


Ibbo

I'm not quite sure what you mean. A php script created the file, so I don't think it's a UID problem. I usually use Linux/Apache, so I'm familiar with that but I've no idea how it work on IIS. Anyway, like I say I don't think it's a UID problem since I'm trying to delete a file that was created by a similar script (so surely the UID's are the same?). I can overwrite, but not delete.

Thanks for your help though.

I e-mailed them, and it was a server setting that was wrong. Argh. I thought I was losing it. Thanks for your help anyway Ibbo.