I can not upload a file in codeigniter - codeigniter

Question

I cannot upload a file in codeigniter. Code I'm using:
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Main extends CI_Controller {
function __construct() {
parent::__construct();
$this->load->library('session');
$this->load->library('upload');
$this->load->library('form_validation');
$this->load->helper(array('form', 'url'));
$this->load->model('User_m');
}
public function form()
{
if($_POST){
//print_r($_POST);exit;
if(!empty($_FILES['userfile']['name']))
{
$config['upload_path'] = "./uploads/";
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['file_name'] = $_FILES['userfile']['name'];
//Load upload library and initialize configuration
//print_r($config);exit;
$this->load->library('upload',$config);
//$this->upload->initialize($config);
if($this->upload->do_upload('userfile')){
$uploadData = $this->upload->data();
$userfile = $uploadData['file_name'];
//echo $userfile;exit;
}
else
{
$userfile = '';
}
}
else
{
$userfile = '';
}
$data['name']=$this->input->post('name');
$data['email']=$this->input->post('email');
$data['phone']=$this->input->post('phone');
$data['userfile']=$userfile;
$this->User_m->form_insert($data);
}
$this->load->view('form');
}
}
This is my controller function code for processing multipart form data in codeigniter. But file is not uploading.

Answer 1

as you have given code i have modified code to trace it.Here below i have attached the view file as well as controller file :
1) Below is a view file code.In this i have submitted form by giving method name in action attribute.If you are submitting the form through ajax then you can pass the method name over there.
<div id="container">
<h1>Please Fill up the Registration Form.!</h1>
<div id="body">
<!-- <?php echo $error;?> -->
<form method="post" action="<?php echo site_url() . '/Main/form' ?>" enctype="multipart/form-data"> Full name:<br> <input type="text" name="name"><br> Email:<br> <input type="text" name="email"><br> Phone:<br> <input type="text" name="phone"><br><br> Image:<br> <input type="file" name="userfile" /> <br /><br /> <input type="submit"><br> </form>
</div>
</div>
2) Below is a controller code.
<?php
class Main extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->helper(array('form', 'url','html'));
}
public function index()
{
$this->load->view('form');
}
public function form()
{
if($_POST){
if(!empty($_FILES['userfile']['name']))
{
$config['upload_path'] = "./uploads/";
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['file_name'] = $_FILES['userfile']['name'];
//Load upload library and initialize configuration
//print_r($config);exit;
$this->load->library('upload',$config);
//$this->upload->initialize($config);
if($this->upload->do_upload('userfile')){
$uploadData = $this->upload->data();
$userfile = $uploadData['file_name'];
//echo $userfile;exit;
}
else
{
$userfile = '';
}
}
else
{
$userfile = '';
}
$data['name']=$this->input->post('name');
$data['email']=$this->input->post('email');
$data['phone']=$this->input->post('phone');
$data['userfile']=$userfile;
// Below $data getting all the form data
print_r($data);
}
$this->load->view('form');
}
}
Hope this will help you!

Answer 2

You can try this
public function form()
{
if($_POST){
if(!empty($_FILES['userfile']['name']))
{
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'jpg|jpeg|png|gif';
$config['file_name'] = $_FILES['userfile']['name'];
$this->upload->initialize($config);
$this->load->library('upload',$config);
if($this->upload->do_upload('userfile')){
$userfile = $_FILES['userfile']['name'];
}
else
{
$userfile = '';
}
}
else
{
$userfile = '';
}
$data['name']=$this->input->post('name');
$data['email']=$this->input->post('email');
$data['phone']=$this->input->post('phone');
$data['userfile']=$userfile;
$this->User_m->form_insert($data);
}