title: Post Returns NULL
body: <p>I am trying to fetch the contents of the uploaded file. But the post value is returning NULL. But the <code>$_FILES</code> values are getting correctly. Also tried <code>$this-&gt;input-&gt;post()</code> but it still returns NULL.</p>
  
  <p>View:(upload_contacts.php)</p>
  
  <pre><code>    &lt;form enctype='multipart/form-data' method='POST'&gt;
      &lt;table&gt;
          &lt;tr&gt;
              &lt;td&gt;
              Choose a file to upload: &lt;input name='uploadedfile' type='file' /&gt;
              &lt;/td&gt;
              &lt;br/&gt;
          &lt;/tr&gt;
          &lt;tr&gt;
              &lt;td&gt;
                  &lt;input type='submit' value='submit' /&gt;
              &lt;/td&gt;
          &lt;/tr&gt;
      &lt;/table&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>Controller:(contact.php)</p>
  
  <pre><code>public function uploadCSV()
  {   
      //todo : Crate view 
  
      $this-&gt;config-&gt;load('je_settings',TRUE);
      $tally_folder_path = $this-&gt;config-&gt;item('folder_path');
      if(! empty($_FILES['uploadedfile']['name']))
      {
          var_dump($_FILES['uploadedfile']['name']);
          var_dump($_POST);
          die();
          $file_type = $_FILES['uploadedfile']['type'];
          $allowed = array('text/csv','text/comma-separated-values');
          if( ! empty($_FILES['uploadedfile']['name']) &amp;&amp; in_array($file_type, $allowed))
          {
              $tally_src_file = $tally_folder_path . basename( $_FILES['uploadedfile']['name']);
              move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $tally_src_file);
          }
          else
          {
              die("No file specified or Format not supported");
          }
          $path = "sudo chmod 777 ".$tally_src_file;
          shell_exec($path);
          $this-&gt;user($tally_src_file);
      }
      else
      {
          $this-&gt;data['om_content'] = $this-&gt;load-&gt;view('upload_contacts', $this-&gt;data, TRUE);
          $this-&gt;data['content'] = $this-&gt;load-&gt;view('om/_default', $this-&gt;data, TRUE);
          $this-&gt;load-&gt;view('common/default', $this-&gt;data);
          //$data = array();
          //$data['om_content'] = $this-&gt;load-&gt;view('upload_contacts',$data,TRUE);
  
          //$this-&gt;load-&gt;view("common/default",$this-&gt;data);
      }
  
  }
  
  public function user($path)
  {
      $fp = fopen($path, "r");
      $delimiter = ',';
  
      while($row = fgetcsv($fp,1000,$delimiter))
      {
          if($row[0] != 'register_first_name')
          {
              $status = 0;
              $response = '';
              $value = array();
              $name = ucwords(strtolower($row[0]));
              $name_array = explode(' ', $name);
              $value['register_first_name'] = $name_array[0];
              unset($name_array[0]);
              $value['register_last_name'] = 'NLN';
  
              if(isset($name_array))
              {
                  $value['register_last_name'] = implode(' ', $name_array);
                  if(empty($value['register_last_name']))
                  {
                      $value['register_last_name'] = 'NLN';
                  }
              }
              $value['register_phone_number'] = '8888888888';
              $value['register_email_address'] = $row[1];
              $value['register_username'] = $row[2];
              $value['user_group_id'] = $row[3];
  
              $value['register_user'] = 'Submit';
  
              $value['register_password'] = $this-&gt;generate_password();
  
              $value['register_confirm_password'] = $value['register_password'];
              //var_dump($this-&gt;input-&gt;post('register_user'));
              $this-&gt;register_corp_account($value);
           }
       }
  }
  </code></pre>