codeigniter教程之多文件上传使用示例

代码如下:
<?php if(!defined("BASEPATH")){ exit("No direct script access allowed"); }

 /**
  * Multi-Upload
  *
  * Extends CodeIgniters native Upload class to add support for multiple
  * uploads.
  *
  * @package  CodeIgniter
  * @subpackage Libraries
  * @category Uploads
  */
  class MY_Upload extends CI_Upload {

   /**
    * Properties
    */
     protected $_multi_upload_data   = array();
    protected $_multi_file_name_override = "";

   /**
    * Initialize preferences
    *
    * @access public
    * @param array
    * @return void
    */
    public function initialize($config = array()){
     //Upload default settings.
     $defaults = array(
         "max_size"   => 0,
         "max_width"   => 0,
         "max_height"  => 0,
         "max_filename"  => 0,
         "allowed_types"  => "",
         "file_temp"   => "",
         "file_name"   => "",
         "orig_name"   => "",
         "file_type"   => "",
         "file_size"   => "",
         "file_ext"   => "",
         "upload_path"  => "",
         "overwrite"   => FALSE,
         "encrypt_name"  => FALSE,
         "is_image"   => FALSE,
         "image_width"  => "",
         "image_height"  => "",
         "image_type"  => "",
         "image_size_str" => "",
         "error_msg"   => array(),
         "mimes"    => array(),