upload image

Hello,

I trying to practice uploading image:

http://www.codersmount.com/2012/11/uploa...deigniter/

I don't think it works:

views/main.php

PHP Code:

<?php
  $image = array(
    'name'  =>  'userfile',
    'id'    =>  'userfile',
    );
     
  $submit = array(
    'name'  => 'submit',
    'id'    => 'submit',
    'value' => 'Upload'
    );
?>
<?php echo form_open_multipart('upload/upload_image', 'id=upload_file'); ?>
<?php echo form_upload($image); ?>
<?php echo form_submit($submit); ?>
<?php echo form_close(); ?>

controllers/upload.php

PHP Code:

class Upload extends CI_Controller{
    
    public function index()
    {
        $this->load->view('main');
    }    
    
    public function upload_image(){
        $this->upload_model->do_upload(); //execute the upload function
        
        
    }
} 


models/upload_model.php

PHP Code:

<?php
class User_model extends CI_Model{
  var $original_path;
  var $resized_path;
  var $thumbs_path;
 
  //initialize the path where you want to save your images
  function __construct(){
    parent::__construct();
    //return the full path of the directory
    //make sure these directories have read and write permessions
    $this->original_path = realpath(APPPATH.'../uploads/original');
    $this->resized_path = realpath(APPPATH.'../uploads/resized');
    $this->thumbs_path = realpath(APPPATH.'../uploads/thumbs');
  }
 
  function do_upload(){
    $this->load->library('image_lib');
    $config = array(
    'allowed_types'     => 'jpg|jpeg|gif|png', //only accept these file types
    'max_size'          => 2048, //2MB max
    'upload_path'       => $this->original_path //upload directory
  );
 
    $this->load->library('upload', $config);
    $image_data = $this->upload->data(); //upload the image
 
    //your desired config for the resize() function
    $config = array(
    'source_image'      => $image_data['full_path'], //path to the uploaded image
    'new_image'         => $this->resized_path, //path to
    'maintain_ratio'    => true,
    'width'             => 128,
    'height'            => 128
    );
 
    //this is the magic line that enables you generate multiple thumbnails
    //you have to call the initialize() function each time you call the resize()
    //otherwise it will not work and only generate one thumbnail
    $this->image_lib->initialize($config);
    $this->image_lib->resize();
 
    $config = array(
    'source_image'      => $image_data['full_path'],
    'new_image'         => $this->thumbs_path,
    'maintain_ratio'    => true,
    'width'             => 36,
    'height'            => 36
    );
    //here is the second thumbnail, notice the call for the initialize() function again
    $this->image_lib->initialize($config);
    $this->image_lib->resize();
  }
} 


I also get this error message:


http://localhost/upload/


Fatal error: Call to undefined function form_open_multipart() in C:\Program Files (x86)\EasyPHP-Devserver-16.1\eds-www\upload\application\views\main.php on line 14
A PHP Error was encountered
Severity: Error
Message: Call to undefined function form_open_multipart()
Filename: views/main.php
Line Number: 14
Backtrace:


Can anyone help me fix this error?

Thanks in advance.

" If I looks more intelligence please increase my reputation."