chamilo / chamilo-lms

			$save_dir = getcwd();

			chdir($path);

			$handle = opendir($path);

			while ($element = readdir($handle)) {

				if ($element == '.' || $element == '..') continue;

                // Skip the current and parent directories

				if (is_dir($element)) {

					$dir_array[] = $path.'/'.$element;

				}

			}

			closedir($handle);

			// Recursive operation if subdirectories exist

			$dir_number = sizeof($dir_array);

			foreach ($dir_array as $directory) {

				chdir($directory);

				$handle = opendir($directory);

			   	while ($element = readdir($handle)) {

					if ($element == '.' || $element == '..' || $element == '.htaccess') continue;

                    // Skip the current and parent directories

					if (!is_dir($element)) {

						$element_array[] = $directory.'/'.$element;

					}

				}

				closedir($handle);

				chdir('..');

				chdir($save_dir);

            if (is_dir($path)) {

                $handle = opendir($path);

                while ($file = readdir($handle)) {

                    if ($file == '.' || $file == '..' || $file == '.htaccess' || is_dir($path.$file)) {

                        continue; // skip current/parent directory and .htaccess

                    }

                    $file_list[] = $file;

                }

                if (count($file_list) > 0) {

                    $return = "<h4>$course</h4>";

                    $return .= '<ul class="thumbnails">';