function drupal_get_filename

cis7 drupal_get_filename($type, $name, $filename = NULL)
cle7 drupal_get_filename($type, $name, $filename = NULL)
elmsmedia7 drupal_get_filename($type, $name, $filename = NULL)
icor7 drupal_get_filename($type, $name, $filename = NULL)
meedjum_blog7 drupal_get_filename($type, $name, $filename = NULL)
mooc7 drupal_get_filename($type, $name, $filename = NULL)

Returns and optionally sets the filename for a system resource.

The filename, whether provided, cached, or retrieved from the database, is only returned if the file exists.

This function plays a key role in allowing Drupal's resources (modules and themes) to be located in different places depending on a site's configuration. For example, a module 'foo' may legally be located in any of these three places:

modules/foo/foo.module sites/all/modules/foo/foo.module sites/

Calling drupal_get_filename('module', 'foo') will give you one of the above, depending on where the module is located.


$type: The type of the item (theme, theme_engine, module, profile).

$name: The name of the item for which the filename is requested.

$filename: The filename of the item if it is to be set explicitly rather than by consulting the database.

Return value

The filename of the requested item or NULL if the item is not found.

8 calls to drupal_get_filename()
devel_boot in sites/all/modules/ulmus/devel/devel.module
Implementation of hook_boot(). Runs even for cached pages.
DrupalUnitTestCase::setUp in modules/simpletest/drupal_web_test_case.php
Sets up unit test environment.
drupal_get_path in includes/
Returns the path to a system item (module, theme, etc.).
drupal_load in includes/
Includes a file with the provided type and name.
httprl_boot in sites/all/modules/ulmus/httprl/httprl.module
Implements hook_boot().

... See full list


includes/, line 820
Functions that need to be loaded on every Drupal request.


function drupal_get_filename($type, $name, $filename = NULL) {
  // The location of files will not change during the request, so do not use
  // drupal_static().
  static $files = array(), $dirs = array();

  // Profiles are a special case: they have a fixed location and naming.
  if ($type == 'profile') {
    $profile_filename = "profiles/$name/$name.profile";
    $files[$type][$name] = file_exists($profile_filename) ? $profile_filename : FALSE;
  if (!isset($files[$type])) {
    $files[$type] = array();

  if (!empty($filename) && file_exists($filename)) {
    $files[$type][$name] = $filename;
  elseif (isset($files[$type][$name])) {
    // nothing
  // Verify that we have an active database connection, before querying
  // the database. This is required because this function is called both
  // before we have a database connection (i.e. during installation) and
  // when a database connection fails.
  else {
    try {
      if (function_exists('db_query')) {
        $file = db_query("SELECT filename FROM {system} WHERE name = :name AND type = :type", array(':name' => $name, ':type' => $type))->fetchField();
        if (file_exists(DRUPAL_ROOT . '/' . $file)) {
          $files[$type][$name] = $file;
    catch (Exception $e) {
      // The database table may not exist because Drupal is not yet installed,
      // or the database might be down. We have a fallback for this case so we
      // hide the error completely.
    // Fallback to searching the filesystem if the database could not find the
    // file or the file returned by the database is not found.
    if (!isset($files[$type][$name])) {
      // We have a consistent directory naming: modules, themes...
      $dir = $type . 's';
      if ($type == 'theme_engine') {
        $dir = 'themes/engines';
        $extension = 'engine';
      elseif ($type == 'theme') {
        $extension = 'info';
      else {
        $extension = $type;

      if (!isset($dirs[$dir][$extension])) {
        $dirs[$dir][$extension] = TRUE;
        if (!function_exists('drupal_system_listing')) {
          require_once DRUPAL_ROOT . '/includes/';
        // Scan the appropriate directories for all files with the requested
        // extension, not just the file we are currently looking for. This
        // prevents unnecessary scans from being repeated when this function is
        // called more than once in the same page request.
        $matches = drupal_system_listing("/^" . DRUPAL_PHP_FUNCTION_PATTERN . "\.$extension$/", $dir, 'name', 0);
        foreach ($matches as $matched_name => $file) {
          $files[$type][$matched_name] = $file->uri;

  if (isset($files[$type][$name])) {
    return $files[$type][$name];



Error message

  • Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/elmsln_community/ in drupal_send_headers() (line 1499 of /var/www/html/elmsln_community/
  • Error: Call to undefined function apc_delete() in DrupalAPCCache->clear() (line 289 of /var/www/html/elmsln_community/
The website encountered an unexpected error. Please try again later.