function file_scan_directory in Drupal 6

Same name and namespace in other branches

1. 8 core/includes/file.inc \file_scan_directory()
2. 4 includes/file.inc \file_scan_directory()
3. 5 includes/file.inc \file_scan_directory()
4. 7 includes/file.inc \file_scan_directory()

Finds all files that match a given mask in a given directory.

Directories and files beginning with a period are excluded; this prevents hidden files and directories (such as SVN working directories) from being scanned.

Parameters

$dir: The base directory for the scan, without trailing slash.

$mask: The regular expression of the files to find.

$nomask: An array of files/directories to ignore.

$callback: The callback function to call for each match.

$recurse: When TRUE, the directory scan will recurse the entire tree starting at the provided directory.

$key: The key to be used for the returned associative array of files. Possible values are "filename", for the path starting with $dir; "basename", for the basename of the file; and "name" for the name of the file without the extension.

$min_depth: Minimum depth of directories to return files from.

$depth: Current depth of recursion. This parameter is only used internally and should not be passed in.

Return value

An associative array (keyed on the provided key) of objects with "filename", "basename", and "name" members corresponding to the matching files.

Related topics

8 calls to file_scan_directory()

drupal_clear_css_cache in includes/common.inc

Delete all cached CSS files.

drupal_clear_js_cache in includes/common.inc

Delete all cached JS files.

drupal_system_listing in includes/common.inc

Return an array of system file objects.

image_get_available_toolkits in includes/image.inc

Return a list of available toolkits.

install_find_locales in ./install.php

Find all .po files for the current profile.

... See full list

File

includes/file.inc, line 1074

API for handling file uploads and server file management.

Code

function file_scan_directory($dir, $mask, $nomask = array(
  '.',
  '..',
  'CVS',
), $callback = 0, $recurse = TRUE, $key = 'filename', $min_depth = 0, $depth = 0) {
  $key = in_array($key, array(
    'filename',
    'basename',
    'name',
  )) ? $key : 'filename';
  $files = array();
  if (is_dir($dir) && ($handle = opendir($dir))) {
    while (FALSE !== ($file = readdir($handle))) {
      if (!in_array($file, $nomask) && $file[0] != '.') {
        if (is_dir("{$dir}/{$file}") && $recurse) {

          // Give priority to files in this folder by merging them in after any subdirectory files.
          $files = array_merge(file_scan_directory("{$dir}/{$file}", $mask, $nomask, $callback, $recurse, $key, $min_depth, $depth + 1), $files);
        }
        elseif ($depth >= $min_depth && @ereg($mask, $file)) {

          // Always use this match over anything already set in $files with the same $$key.
          $filename = "{$dir}/{$file}";
          $basename = basename($file);
          $name = substr($basename, 0, strrpos($basename, '.'));
          $files[${$key}] = new stdClass();
          $files[${$key}]->filename = $filename;
          $files[${$key}]->basename = $basename;
          $files[${$key}]->name = $name;
          if ($callback) {
            $callback($filename);
          }
        }
      }
    }
    closedir($handle);
  }
  return $files;
}