ci_upload.php

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

class Upload extends MY_Controller
{
    ////////////////////////////////////////
    public function single()
    {
        if ($_FILES['user_avatar_file']['error'] == 0) {
            /// upload avatar
            $upload_path                           = './assets/img/user';
            $ext                                   = strtolower(pathinfo($_FILES['user_avatar_file']['name'], PATHINFO_EXTENSION));
            $file_name                             = 'avatar_' . md5(time() . uniqid()) . '.' . $ext;
            //$param['user_avatar']                  = 'user/' . $file_name;
            $_SESSION['user_info'][0]->user_avatar = 'user/' . $file_name;

            if (!is_dir($upload_path)) {
                mkdir($upload_path);
            }
            chmod($upload_path, 0777);
            $config_avatar['upload_path']      = $upload_path;
            $config_avatar['allowed_types']    = 'png';
            $config_avatar['max_width']        = 256;
            $config_avatar['max_height']       = 256;
            $config_avatar['file_name']        = $file_name;
            $config_avatar['overwrite']        = true;
            $config_avatar['file_ext_tolower'] = true;
            // $config_avatar['max_size']         = 1024;

            $this->load->library('upload', $config_avatar, 'upload_avatar');

            if (!$this->upload_avatar->do_upload('user_avatar_file')) {
                $error['message'] = strip_tags($this->upload_avatar->display_errors());
                //opn($error);
                //echo 'avatar';
                exit();
            } else {
                $this->db->where('user_id', $user_id);
                $cek_logo = $this->db->get('user')->row();
                // echo is_file('./files/images/user/'.$cek_logo->user_avatar);
                if (is_file('./assets/img/' . $cek_logo->user_avatar)) {
                    unlink('./assets/img/' . $cek_logo->user_avatar);
                }
            }
        }
    }
  
    ////////////////////////////////////////
    public function multiple(){
      
        foreach ($_FILES as $key => $value) {
            if (is_array($value['name'])) {
                foreach ($value['name'] as $n_key => $n_value) {
                    if (!$value['error'][$n_key]) {

                        $_FILES[$key]['name']     = $value['name'][$n_key];
                        $_FILES[$key]['type']     = $value['type'][$n_key];
                        $_FILES[$key]['tmp_name'] = $value['tmp_name'][$n_key];
                        $_FILES[$key]['error']    = $value['error'][$n_key];
                        $_FILES[$key]['size']     = $value['size'][$n_key];

                        $upload_path                               = './assets/img/item';
                        $ext                                       = strtolower(pathinfo($_FILES[$key]['name'], PATHINFO_EXTENSION));
                        $file_name                                 = 'item_images_' . md5(time() . uniqid());
                        //$param_item_images['item_images_filename'] = 'item/' . $file_name . '.' . $ext;

                        // $config['upload_path'] = './assets/img/item';

                        $config['upload_path']      = $upload_path;
                        $config['allowed_types']    = 'png';
                        $config['max_width']        = 256;
                        $config['max_height']       = 256;
                        $config['file_name']        = $file_name . '.' . $ext;
                        $config['overwrite']        = true;
                        $config['file_ext_tolower'] = true;

                        $this->load->library('upload');
                        $this->upload->initialize($config);
                        if (!$this->upload->do_upload($key)) {
                            // echo $this->upload->display_errors();
                            $error['message'] = strip_tags($this->upload->display_errors());
                            //opn($error);
                            exit();

                            // $res['status']  = 'error';
                            // $res['color']   = 'danger';
                            // $res['message'] = 'Add feature failed.';

                        } else {
                            if ($cek_item_images) {
                                if (is_file('./assets/img/' . $cek_item_images->item_images_filename)) {
                                    unlink('./assets/img/' . $cek_item_images->item_images_filename);
                                    unlink('./assets/img/' . $cek_item_images->item_images_thumbnail);
                                }
                            }

                            /// resize thumbnail
                            $upload_data = $this->upload->data();
                            // $image_ext                      = strtolower(pathinfo($upload_data['full_path'], PATHINFO_EXTENSION));
                            $image_config['image_library']  = 'gd2';
                            $image_config['source_image']   = $upload_data['full_path'];
                            $image_config['quality']        = "100%";
                            $image_config['maintain_ratio'] = true;
                            $image_config['width']          = 80;
                            $image_config['height']         = 80;
                            $image_config['new_image']      = $upload_data["file_path"] . $file_name . '_thumbnail_.' . $ext;
                            $this->load->library('image_lib', $image_config);
                            $this->image_lib->clear();
                            $this->image_lib->initialize($image_config);
                            if (!$this->image_lib->resize()) {
                                echo $this->image_lib->display_errors();exit();
                            } else {
                                $param_item_images['item_images_thumbnail'] = 'item/' . $file_name . '_thumbnail_.' . $ext;
                            }
                        }
                    }
                }
            }
        }
    
    }

    //////////////////////////////////////// 
}
?>