MultiFile Upload function in CodeIgniter

homepage.php

<!-- CONTROLLER -->
<? if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Homepage extends CI_Controller {
	function Homepage(){
		parent::__construct();
	}
	
	public function upload()
	{

		$info = array();
		$uploaded = array();
		$content = array();
		$state	= 'pre';
			
		if ($this->input->server('REQUEST_METHOD') == 'POST'){
			$state = 'post';
			$files = $_FILES;	
			$settings = array();
			$settings['field'] = 'photo';
			$settings['folder'] = 'assets/uploads/temp';
			$settings['makeThumb'] = true;
			$settings['allowed'] = "gif|jpg|jpeg|png";
			$numFileUploads = count($_FILES[$settings['field']]['name']);
				
			if($numFileUploads >= 1){	
					$uploaded = $this->upload->uploadmultiple($files, $settings);
					if($uploaded)
					{
							$info = $uploaded; 
					} else {
							$info = false;
					}
			} else {
				$info = false;
				$state = 'error';
			}

		}

		$content['title']	= "Upload Photo";
		$content['array']	= $info;
		$content['state']	= $state;
		$header['title'] 	= "Upload Photo";

		$this->load->view('template/header', $header);
		$this->load->view('template/upload', $content);
		$this->load->view('template/footer');
	}
	
}

MY_Upload.php

<!-- LIBRARY -->
<? 
if (!defined('BASEPATH')) exit('No direct script access allowed');

class MY_Upload extends CI_Upload {
		
		function uploadmultiple($files, $settings)
		{
				$uploaded = array();
				
				$field = $settings['field'];
				$makeThumb = $settings['makeThumb'];
				$folder = $settings['folder'];
				$allowed = $settings['allowed'];
				
				$numFileUploads = count($_FILES[$field]['name']);
				if($numFileUploads == 0)
				{
						$uploaded['message'] = 'nothing to upload';
				} else {
						for($i=0; $i<$numFileUploads; $i++)
						{
								
								$_FILES[$field]['name']= $files[$field]['name'][$i];
								$_FILES[$field]['type']= $files[$field]['type'][$i];
								$_FILES[$field]['tmp_name']= $files[$field]['tmp_name'][$i];
								$_FILES[$field]['error']= $files[$field]['error'][$i];
								$_FILES[$field]['size']= $files[$field]['size'][$i];
								
								$config['upload_path'] = FCPATH.$folder;
								$config['remove_spaces'] = TRUE;
								$config['overwrite'] = TRUE;
								$config['max_size'] = 15000;
								$config['allowed_types'] = $allowed;
								
								$this->initialize($config);
								$upload = $this->do_upload($field);
								$data = $this->data();
								
								if(!$upload)
								{
									$filename = $_FILES['photo']['name'];
								} else {
									$filename = $_FILES['photo']['name'];
									$uploaded[$i] = $data;
										
										if($makeThumb == true)
										{
											$thumbSettings['width'] = 250;
											$thumbSettings['height'] = 250;
											$thumbSettings['filename'] = $filename;
											$thumbSettings['source'] = $folder."/".$filename;
											$thumbSettings['destination'] = $folder."/thumb_".$filename;
											$thumb = $this->createthumbnail($thumbSettings);
											# $uploaded[$i]['thumbnail'] = $file['raw_name']."_thumb".$file['file_ext'];
							
										} 
										
								}
						
						}
				}
				
				return $uploaded;
				
		}		

		function createthumbnail($settings)
		{

			$ci = &get_instance();			
			$ci->load->library('image_lib');
			
			$source = $settings['source'];
			$destination = $settings['destination'];
			$width = $settings['width'];
			$height = $settings['height'];
				
				
			$config['image_library']    = "gd2";
			$config['source_image']     = FCPATH."/".$source;
			$config['new_image']     = FCPATH."/".$destination;
			$config['create_thumb']     = TRUE;
			$config['maintain_ratio']   = TRUE;
			$config['width'] = $width;
			$config['height'] = $height;
			
			$ci->image_lib->initialize($config); 
			
			if(!$ci->image_lib->resize())
			{
				return false;
			} else {
				return true;
			}
		}		
	
} 

upload.php

<!-- VIEW -->
	<div class="container-light-blue">
		<div id="content">
			<div class="container">
				<div class="row">
					<header class="col-6 col-lg-6 col-offset-3">
						<h1 class="page-title"><?=$title?></h1>
					</header>
				</div>
				<div class="row">
					<div class="col-6 col-lg-6 col-offset-3">
					
					<?
					switch($state):
							case 'error':
								echo "<div class='label label-danger'>There was an error uploading your file</div>";
							break;
							case 'post':
									if(!empty($array))
									{
											echo "<pre>";
											print_r($array);
											echo '</pre>';
									} else {
										echo "<div class='label label-danger'>There was an error uploading your file</div>";	
									}
							break;
						default:
							echo "<p>Use the form below to upload files</p>";
						break;
					endswitch;
					
							
					echo form_open_multipart(current_url());
					echo $this->forms->fileUploadMulti("photo", "Choose photo ");
					echo $this->forms->submit("Upload Photo(s)", "btn btn-success btn-lg");
					echo form_close();
					
					?>
					
					</div>		
				</div>
			</div>
		</div>
	</div>