store multiple files at their specific fields in database with codeigniter - php

Question

I am creating a form with 20+ fields to submit the details of the employee's. In the form the employee has to fill their details and upload their document. There are five fields for documents namely (photo,idcard,licence,cv,attest) so the name of each uploaded document has to be stored in a particular field . If i upload all the files in sequence then it is working fine but how to insert the name of a file to their designated field if the employee only inserts one or two files.
Hope i am making sense.
controller
public function register()
{
//form validation
if($this->form_validation->run() === False){
$this->load->view('form');
}
else{
//uploading files
$number_of_files = sizeof(array_filter($_FILES['file']['tmp_name']));
$files = $_FILES['file'];
$errors = array();
for($i=0;$i<$number_of_files;$i++)
{
if($_FILES['file']['error'][$i] != 0)
{
$error[$i] = array('error' => 'Couldn\'t upload file '.$_FILES['file']['name'][$i]);
$this->load->view('form',$error);
}
}
//create a new directory for each new user
$dir = $this->input->post('fname').'_'.$this->input->post('country');
if( is_dir(FCPATH . 'uploads/'.$dir) === false )
{
mkdir(FCPATH . 'uploads/'.$dir);
}
$this->load->library('upload');
$config['upload_path'] = FCPATH . 'uploads/'.$dir;
$config['allowed_types'] = 'gif|jpg|png|docx';
for ($i = 0; $i < $number_of_files; $i++) {
$_FILES['file']['name'] = $files['name'][$i];
$_FILES['file']['type'] = $files['type'][$i];
$_FILES['file']['tmp_name'] = $files['tmp_name'][$i];
$_FILES['file']['error'] = $files['error'][$i];
$_FILES['file']['size'] = $files['size'][$i];
$this->upload->initialize($config);
// we retrieve the number of files that were uploaded
if ($this->upload->do_upload('file'))
{
$data['uploads'][$i] = $this->upload->data();
}
else
{
$error = array('error' => $this->upload->display_errors());
$this->load->view('form',$error);
}
}
//assign names of uploaded files to insert in database
if($data){
foreach($data as $value){
$photo = FCPATH . 'uploads/'.$dir.$value[0]['file_name'];
$idProof = FCPATH . 'uploads/'.$dir.$value[1]['file_name'];
$cv = FCPATH . 'uploads/'.$dir.$value[2]['file_name'];
$license = FCPATH . 'uploads/'.$dir.$value[3]['file_name'];
$attest = FCPATH . 'uploads/'.$dir.$value[4]['file_name'];
}
}
$this->form_model->insert_users($photo,$idProof,$cv,$license,$attest);
redirect('form/registered');
}
}
model
public function insert_users($photo,$idProof,$cv,$license,$attest){
$data = array(
//other fields...
'other' => $this->input->post('other'),
'photo' => $photo,
'idProof' => $idProof,
'cv' => $cv,
'license' => $license,
'attest' => $attest
);
return $this->db->insert('employee',$data);
}
View
<input type='file' name='file[]' onchange="readURL(this);" />
<input type='file' name='file[]' onchange="readURL(this);" />
<input type='file' name='file[]' onchange="readURL(this);" />
<input type='file' name='file[]' onchange="readURL(this);" />
<input type='file' name='file[]' onchange="readURL(this);" />