On the other hand if you want to keep track of the number of files generated 
you might want to try something like this:

      $i=1;
      $thePath=$temp_dir."/$fileprefix";
      while (file_exists($thePath.$i))
      {
        $i++;
      }
      $thePath.=$i;

($thePath stores a valid temp filename after that)

Bogdan

> hallo,
>
> my applications generates a html-page, with a link to an image.
> this image is created by the application, and should exist only temporarily
> - so it can be deleted after being accessed by the html-page - any ideas
> how to implement this? is working with timetamps (microseconds) safe for
> creating the image's unique name?
>
> thanks
> michi

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