อัพโหลดรูปภาพหลายๆรูปไม่ได้ ขึ้น error Warning --> count(): Parameter must be an array or an object that implements Countable

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

class Add_gallery_event_cl extends CI_Controller{

    function __construct()
    {
        parent::__construct();

        $this->load->model('admin/event/add_gallery_event_model');
    }//function __construct



    function upload_gallery()
    {

        $data_file = array();

        $id_event = $this->uri->segment(4);

        //$id_category = $this->uri->segment(5);


        $part_file = $_SERVER['DOCUMENT_ROOT'].'/file';
        $year = date('Y');
        $month = date('m');
        $day = date('d');


        if ($this->create_directory_year($part_file,$year))
        {



            if ($this->create_directory_month($part_file,$year,$month))
            {

                if ($this->create_directory_day($part_file,$year,$month,$day))
                {

                    $dataInfo = array();
                    $files = $_FILES;
                    echo $cpt = count($_FILES['file_upload']['neme']);
                    for ($i=0; $i<$cpt ; $i++)
                    {

                        sleep(1);
                        $_FILES['file_upload']['name']= $files['file_upload']['name'][$i];
                        $_FILES['file_upload']['type']= $files['file_upload']['type'][$i];
                        $_FILES['file_upload']['tmp_name']= $files['file_upload']['tmp_name'][$i];
                        $_FILES['file_upload']['error']= $files['file_upload']['error'][$i];
                        $_FILES['file_upload']['size']= $files['file_upload']['size'][$i];


                        $config = array(
                            'upload_path' => $part_file.'/'.$year.'/'.$month.'/'.$day,
                            'allowed_types' => 'jpg|jpeg|png|gif',
                            'file_name' => date("YmdHis")
                        );


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


                        $this->upload->initialize($config);


                        if (! $this->upload->do_upload('file_upload'))
                        {

                            $ddd = count($data_file);

                            for ($i=0; $i<$ddd ; $i++) {
                                unlink($part_file.'/'.$data_file[$i]);
                            }

                            $data_file = '';

                        } else {

                            $dataInfo[] = $this->upload->data();

                            $data_file[$i] = $year.'/'.$month.'/'.$day.'/'.$dataInfo[$i]['file_name'];

                        }//if else ! $this->upload->do_upload('file_upload')

                    }//for





                    $data_gallery_event = array(
                        'id_event' => $id_event,
                        'file' => $data_file
                    );





                    if ($this->add_gallery_event_model->add_gallery_event($data_gallery_event))
                    {
                        $status = 'อัพรูปภาพสำเร็จ';
                    } else {
                        $status = 'ไม่สามารถอัพรูปภาพได้';
                    }//if else check add_gallery_event



                    echo "<script>
                            alert('$status');
                            window.location.href='black_edit_event/$id_event';
                          </script>";





                } else {

                    $set_input['error'] = array(
                            'show_error' => 'สร้าง Folder '.$day.' ไม่สำเร็จ',
                            'url' => base_url('admin/event/edit_event_cl/'.$id_event)
                        );

                    $this->show_error($set_input);//show error view

                }// if create_directory_day



            } else {

                $set_input['error'] = array(
                            'show_error' => 'สร้าง Folder '.$month.' ไม่สำเร็จ',
                            'url' => base_url('admin/event/edit_event_cl/'.$id_event)
                        );

                $this->show_error($set_input);//show error view


            }//if else create_directory_month



        } else {

            $set_input['error'] = array(
                            'show_error' => 'สร้าง Folder '.$year.' ไม่สำเร็จ',
                            'url' => base_url('admin/event/edit_event_cl/'.$id_event)
                        );

                        $this->show_error($set_input);//show error view

        }//if else check create_directory_year




    }//function upload



    function black_edit_event()
    {
        $id_event = $this->uri->segment(5);

        redirect('admin/event/edit_event_cl/'.$id_event);
    }//function black_edit_event



}//class Add_gallery_event_cl

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

class Edit_event_cl extends CI_Controller{

    function __construct()
    {
        parent::__construct();
        $this->load->model('admin/event/edit_event_model');
    }//function __construct





    function index()
    {
        $dataheader = array(
            'title' => 'เขตสุขภาพที่13',
        );


        $id_event = $this->uri->segment(4);

        $data_event = $this->edit_event_model->list_edit_event($id_event);

        $data_category = $this->edit_event_model->list_category();

        $data_category_sp = $this->edit_event_model->list_category_sp();








        $set_input['date_edit_event_gallery'] = $this->edit_event_model->list_edit_event_gallery($id_event);//select gallery form event

        $set_input['ID_event'] = $data_event['E_id'];

        $set_input['ID_category'] = $data_event['C_id'];

        $this->load->helper('form');
        //$this->load->library('form_validation');



        /***************************stert set input add gayyery***************************/


        $set_input['file_add_gallery'] = array(
            'name' => 'file_upload[]',
            'multiple' => 'multiple'
        );

        $set_input['submit_add_gallery'] = array(
            'value' => 'upload',
        );



        /***************************end set input add gayyery***************************/


        if($_SESSION['STATUS_LOGIN'] == 'CONFIRM_LOGIN') {

            if ($_SESSION['STATUS'] == 'SUPER_ADMIN' || $_SESSION['STATUS'] == 'ADMIN') {

                $data_show['header'] = $this->load->view('admin/header_view',$dataheader,TRUE);

                $data_show['nav'] = $this->load->view('admin/nav_view','',TRUE);

                $data_show['info'] = $this->load->view('admin/event/edit_event_view',$set_input,TRUE);

                $data_show['footer'] = $this->load->view('admin/footer_view','',TRUE);

                $this->load->view('admin/show_wed_view',$data_show);
                
            } else {
                redirect('admin/login_cl/error_logout');
            }

        } else {
            redirect('admin/login_cl/1');
        }
    }//function index



    function update_event()
    {
        $data = array(
            'id_event' => $this->uri->segment(4),
            'category' => $this->input->post('category'),
            'category_sp' => $this->input->post('category_sp'),
            'title' => $this->input->post('title'),
            'data_post' => $this->input->post('data_post'),
            'category' => $this->input->post('category'),
        );




        if ($this->edit_event_model->update_event($data))
        {

            $status = 'แก้ไขภาพกิจกรรมสำเร็จ';

        } else {

            $status = 'ไม่สามารถแก้ไขภาพกิจกรรม';

        }//if else check update database



        echo "<script>
                alert('$status');
                window.location.href='black_index_event';
              </script>";

    }//function update_event


    function black_index_event()
    {

        redirect('admin/event/index_event_cl');

    }//function black_index_event


}//class edit_event_cl

<div class="col-lg-6">
                                    <div class="card">
                                        <div class="card-header">
                            				<strong>Add Gallery:<?=$nane_event?></strong>
                            			</div><!--<div class="card-header">-->


                                        <div class="card-body card-block">
                                            <?=form_open_multipart('admin/event/upload_gallery/'.$ID_event);?>

                                            <div class="row form-group">
                                                <div class="col col-md-3"><label for="text-input" class=" form-control-label">ไฟล์</label></div>
                                                <div class="col-12 col-md-9">
                                                    <?=form_upload($file_add_gallery);?>
                                                </div><!--<div class="col-12 col-md-9">-->
                                            </div><!--div class row form-group-->

                                            <button type="submit" class="btn btn-primary btn-sm"><i class="fa fa-dot-circle-o"></i>Submit</button>
                                            <button type="reset" class="btn btn-danger btn-sm"><i class="fa fa-ban"></i>Reset</button>
                            				<a href="<?=base_url('admin/event/index_event_cl')?>" class="btn btn-warning btn-sm"><i class="fa  fa-chevron-left">Cancel</i></a>


                                        </div><!--<div class="card-body card-block">-->


                                    </div><!--<div class="card">-->
                                </div><!---<div class="col-lg-6">-->