$content: An array of file items. Use render($content) to print them all,
or print a subset such as render($content['field_example']). Use
hide($content['field_example']) to temporarily suppress the printing of a
$date: Formatted added date. Preprocess functions can reformat it by
calling format_date() with the desired parameters on the $timestamp
$classes: String of classes that can be used to style contextually through
CSS. It can be manipulated through the variable $classes_array from
preprocess functions. The default values can be one or more of the
file: The current template type, i.e., "theming hook".
file-[type]: The current file type. For example, if the file is a
"Image" file it would result in "file-image". Note that the machine
name will often be in a short form of the human readable label.
file-[mimetype]: The current file's MIME type. For exampe, if the file
is a PNG image, it would result in "file-image-png"
$title_prefix (array): An array containing additional output populated by
modules, intended to be displayed in front of the main title tag that
appears in the template.
$title_suffix (array): An array containing additional output populated by
modules, intended to be displayed after the main title tag that appears in
$file: Full file object. Contains data that may not be safe.
$type: File type, i.e. image, audio, video, etc.
$uid: User ID of the file owner.
$timestamp: Time the file was added formatted in Unix timestamp.
$classes_array: Array of html class attribute values. It is flattened
into a string within the variable $classes.
$zebra: Outputs either "even" or "odd". Useful for zebra striping in
$id: Position of the file. Increments each time it's output.
File status variables:
$view_mode: View mode, e.g. 'default', 'full', etc.
$page: Flag for the full page state.
$is_front: Flags true when presented in the front page.
$logged_in: Flags true when the current user is a logged-in member.
$is_admin: Flags true when the current user is an administrator.
Field variables: for each field instance attached to the file a corresponding
variable is defined, e.g. $file->caption becomes $caption. When needing to
access a field's raw values, developers/themers are strongly encouraged to
use these variables. Otherwise they will have to explicitly specify the
desired field language, e.g. $file->caption['en'], thus overriding any
language negotiation rule that was previously applied.