Multiple delete image from database and folder too

hey dear i just curious that about multiple delete,

here is my view using check box javascript

Code:

<form name="indonesia" action="<?php echo site_url('admin/wallpaper/delete'); ?>" method="post">  
        
         <button type="submit" class="btn btn-danger" name="hapus" value="hapus">Hapus</button>

          <?php echo anchor('admin/wallpaper/tambah', 'Tambah Wallpaper');?>
          
        <table id="example" class="table table-striped table-bordered" cellspacing="0" width="100%">
        <thead>
            <tr>
                 <th>
                    <button type="button" class="btn btn-info" onClick="check_all()" >Check</button>
                    <button type="button" class="btn btn-success" onClick="uncheck_all()" >Un-Check</button>
                </th>
                <th>id</th>
                <th>Keterangan</th>
                <th>Gambar</th>
                <th>Action</th>
            </tr>
        </thead>
        
            <tbody>
                <?php
                foreach ($ListWallpaper->result() as $row)
                {
                ?>
            <tr>
                <td><input type="checkbox" name="item[]" id="item[]" value="<?=$row->id_wall ?>"></td>
                <td><?=$row->id_wall ?></td>
                <td><?=$row->ket ?></td>
                <td><?=$row->wall ?></td>
                <td>
                    <a href="<?php echo base_url() ?>admin/wallpaper/hapus/<?= $row->id_wall ?>" class="label label-success">Delete</a>
                    
                    <a href="<?php echo base_url() ?>admin/wallpaper/edit/<?= $row->id_wall ?>" class="label label-success">Update</a>
               </td>
            </tr>
           <?php  }  ?>
        </tbody>
    </table>
          
    </form>

and here is my controller

Code:

public function delete()
    {
        
    $ownerNames = $this->input->post('item');

    foreach ($ownerNames as $ownerName => $k) {
    
     //echo "Array : " . $k . "<br/>";
    
    $photo = $this->wallpaper_model->del_photo($k);
    
    if ($photo->num_rows() > 0)
        {
            $row = $photo->row();
            $file_photo = $row->wall;
            $path_file = 'image/wallpaper/';
            unlink($path_file.$file_photo);
        }
        
      $this->wallpaper_model->drop_photo($k);
      
      redirect('admin/wallpaper','refresh');
    }
}

model

Code:

function del_photo($k)
                {
                    $this->db->where('id_wall',$k);
                    
                    $query = $getData = $this->db->get('tabel_wall');
                            
                            if($getData->num_rows() > 0)
                                    
                                return $query;
                            
                            else
                                  
                               return null;
                }

                                                    
function drop_photo($k)
                                {
                                    $this->db->where('id_wall',$k);
                                    
                                    $this->db->delete('tabel_wall');
                                }

i dont get some error just delete one image in folder when i clicked all, what do i wrong in my MVC, but when i print_r or echo it $file_photo = $row->wall; <--show the name_file ?

anyone suggest for me to fix it, gonna big appreciate that and help others if they face like me


Thanks