usky-website/web/application/controllers/admin/upload.php

<?php
!defined('BASEPATH') && exit('No direct script access allowed');

class Upload extends MY_Admin_Controller
{
    protected $check_access = false;

    public function __construct()
    {
        parent::__construct();
        
       require_once __MYDIR__.'/application/libraries/UploadHandler.php';
       // require_once __MYDIR__.'\application\libraries\UploadHandler.php';
    }

    public function uploadAvatar() {
        $options = array(
            'script_url' => ADMIN_PATH.'/upload/uploadAvatar',
            'upload_dir' => UPLOAD_AVATAR_DIR.'/',
            'upload_url' => UPLOAD_AVATAR_PATH.'/',
            'accept_file_types' =>'/\.(gif|jpe?g|png)$/i',
            'correct_image_extensions' => true,
            'image_versions' => array(
                '' => array(
                    'auto_orient' => true
                ),
                
            )
        );
        $uploadHandler = new UploadHandler($options);
        exit;
    }

    public function uploadLogo() {
        $options = array(
            'script_url' => ADMIN_PATH.'/upload/uploadLogo',
            'upload_dir' => UPLOAD_LOGO_DIR.'/',
            'upload_url' => UPLOAD_LOGO_PATH.'/',
            'accept_file_types' =>'/\.(gif|jpe?g|png)$/i',
            'correct_image_extensions' => true,
            'image_versions' => array(
                '' => array(
                    'auto_orient' => true
                ),
                
            )
        );
        $uploadHandler = new UploadHandler($options);
        exit;
    }

    public function uploadFile() {
        $options = array(
            'script_url' => ADMIN_PATH.'/upload/uploadFile',
            'upload_dir' => UPLOAD_FILE_DIR.'/',
            'upload_url' => UPLOAD_FILE_PATH.'/',
            'correct_image_extensions' => true,
            'image_versions' => array(
                '' => array(
                    'auto_orient' => true
                ),
                
            )
        );
        $uploadHandler = new UploadHandler($options);
        exit;
    }

    public function mulitUploadImg(){
        $dir_token = $this->input->get('dir_token');
        if (strpos($dir_token , '.') || strpos($dir_token, '/')) {
            die;
        }
        else{
            $options = array(
                'script_url' => ADMIN_PATH.'/upload/mulitUploadImg?dir_token='.$dir_token,
                 // 'upload_dir' => UPLOAD_IMG_DIR.'/'.$dir_token.'/',
                'upload_dir' => UPLOAD_IMG_DIR.DIRECTORY_SEPARATOR.$dir_token.DIRECTORY_SEPARATOR,
                'upload_url' => UPLOAD_IMG_PATH.'/'.$dir_token.'/',
                'accept_file_types' =>'/\.(gif|jpe?g|png)$/i',
                'correct_image_extensions' => true,
                'image_versions' => array(
                    '' => array(
                        'auto_orient' => true
                    ),
                    'thumbnail' => array(
                        'crop' => true,
                        'max_width' => 140,
                        'max_height' => 80
                    )
                )
            );
            $uploadHandler = new UploadHandler($options);
        }
        exit;
    }
    

}