<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 4.3.2 or newer * * @package CodeIgniter * @author Rick Ellis * @copyright Copyright (c) 2006, EllisLab, Inc. * @license http://www.codeigniter.com/user_guide/license.html * @link http://www.codeigniter.com * @since Version 1.0 * @filesource */ // ------------------------------------------------------------------------ /** * CodeIgniter File Helpers * * @package CodeIgniter * @subpackage Helpers * @category Helpers * @author Rick Ellis * @link http://www.codeigniter.com/user_guide/helpers/file_helpers.html */ // ------------------------------------------------------------------------ /** * Read File * * Opens the file specfied in the path and returns it as a string. * * @access public * @param string path to file * @return string */ function read_file($file) { if ( ! file_exists($file)) { return FALSE; } if (function_exists('file_get_contents')) { return file_get_contents($file); } if ( ! $fp = @fopen($file, 'rb')) { return FALSE; } flock($fp, LOCK_SH); $data = ''; if (filesize($file) > 0) { $data =& fread($fp, filesize($file)); } flock($fp, LOCK_UN); fclose($fp); return $data; } // ------------------------------------------------------------------------ /** * Write File * * Writes data to the file specified in the path. * Creates a new file if non-existent. * * @access public * @param string path to file * @param string file data * @return bool */ function write_file($path, $data, $mode = 'wb') { if ( ! $fp = @fopen($path, $mode)) { return FALSE; } flock($fp, LOCK_EX); fwrite($fp, $data); flock($fp, LOCK_UN); fclose($fp); return TRUE; } // ------------------------------------------------------------------------ /** * Delete Files * * Deletes all files contained in the supplied directory path. * Files must be writable or owned by the system in order to be deleted. * If the second parameter is set to TRUE, any directories contained * within the supplied base directory will be nuked as well. * * @access public * @param string path to file * @param bool whether to delete any directories found in the path * @return bool */ function delete_files($path, $del_dir = FALSE, $level = 0) { // Trim the trailing slash $path = preg_replace("|^(.+?)/*$|", "\\1", $path); if ( ! $current_dir = @opendir($path)) return; while(FALSE !== ($filename = @readdir($current_dir))) { if ($filename != "." and $filename != "..") { if (is_dir($path.'/'.$filename)) { $level++; delete_files($path.'/'.$filename, $del_dir, $level); } else { unlink($path.'/'.$filename); } } } @closedir($current_dir); if ($del_dir == TRUE AND $level > 0) { @rmdir($path); } } // ------------------------------------------------------------------------ /** * Get Filenames * * Reads the specified directory and builds an array containing the filenames. * Any sub-folders contained within the specified path are read as well. * * @access public * @param string path to source * @param bool whether to include the path as part of the filename * @return array */ function get_filenames($source_dir, $include_path = FALSE) { static $_filedata = array(); if ($fp = @opendir($source_dir)) { while (FALSE !== ($file = readdir($fp))) { if (@is_dir($source_dir.$file) && substr($file, 0, 1) != '.') { get_filenames($source_dir.$file."/", $include_path); } elseif (substr($file, 0, 1) != ".") { $_filedata[] = ($include_path == TRUE) ? $source_dir.$file : $file; } } return $_filedata; } } ?>