andrew morton wrote:
It's a bit of a pain to learn but you'll save yourself some headaches by using Drupal's file functions in includes/file.inc for doing path handling. If you're trying to create a file in Drupal's files directory use: file_create_path('the/desired/filename.ext'); which give you a path relative to Drupal's root. If you need the full path from the server root you'll need to use PHP's realpath() which only works with existing files so you'll need to use: realpath(file_directory_path()) . 'the/desired/filename.ext'; Once you get some data saved in there you can use file_create_url() to get a URL for the file that you can send out to visitors so they can download the file.
andrew
When coding realpath(file_directory_path()) . 'the/desired/filename.ext'; Isn't there an assumption that file_directory_path() is relative to the current path? Otherwise how does realpath know where it's intended to go? Which kind of brings me back to the original question, of file_directory_path being relative to...what? Will my current position, when invoking file_directory_path() always be relative to the Drupal root, even if the current page has a path that is a subdirectory off the Drupal root?