Form not uploading file in codeigniter 2.0 - php

Question

I have tried every possible method but no success. Just trying to upload file using code igniter but not working the error I am getting
<pre>Array
(
[error] => <p>You did not select a file to upload.</p>
)
I have tried in normal core php at my local host that works fine but not working with code igniter. It is simply not picking the file. If I check with var_dump($_FILES['fileToUpload']); the result will be array(0).
Form Code
<form id="contact_form" enctype="multipart/form-data" method="post" action="<?php echo base_url();?>Main/do_upload">
<input type="file" class="form-control" name="fileToUpload" id="fileToUpload">
</form>
Controller Code
$config = array(
'upload_path' => "./uploads/",
'allowed_types' => "gif|jpg|png|jpeg|pdf",
'overwrite' => TRUE,
'max_size' => "2048000", // Can be set to particular file size , here it is 2 MB(2048 Kb)
'max_height' => "768",
'max_width' => "1024"
);
$this->load->library('upload', $config);
if($this->upload->do_upload())
{
$data = array('upload_data' => $this->upload->data());
echo "<pre>";
var_dump($data);
// $this->load->view('upload_success',$data);
}else{
$error = array('error' => $this->upload->display_errors());
echo "<pre>";
print_r($error);
}
config
$autoload['libraries'] = array("session", "email", "database");
$autoload['helper'] = array("url", "file", "form");
Is there anything I am not aware of ? Please guide I am stuck here.

Answer 1

You missed input file name in do_upload():
Use :
if(!$this->upload->do_upload('image_file'))
{
//$this->upload->display_errors()
}
else
{
//$this->upload->data()
}
Instead of:
if($this->upload->do_upload())

Answer 2

You miss parameters in $this->upload->do_upload Pleas check below code.
public function do_upload(){
$config = array(
'upload_path' => "assets/uploads/",
'allowed_types' => "gif|jpg|png|jpeg|pdf",
'overwrite' => TRUE,
'max_size' => "2048000", // Can be set to particular file size , here it is 2 MB(2048 Kb)
'max_height' => "768",
'max_width' => "1024"
);
$this->load->library('upload', $config);
$this->upload->initialize($config);
if($this->upload->do_upload('fileToUpload'))
{
$data = array('upload_data' => $this->upload->data());
echo "<pre>";
var_dump($data);
// $this->load->view('upload_success',$data);
}else{
$error = array('error' => $this->upload->display_errors());
echo "<pre>";
print_r($error);
}
}
Pass your file upload name in $this->upload->do_upload('fileToUpload')