Codeigniter -> Image Uploading Part 2 -> Multiple Images - php

Question

I am trying to create a multiple image uploader and I have come across this link. What I am confused about in relation to my code below and the link is that do I have to have 2
$this->upload->do_upload(); functions to run my code or how do I use
$this->upload->initialize($config); in the below situation?
Code:
//Image Upload Function
$conceptOne = 'conceptOne';
$conceptTwo = 'conceptTwo';
$location = $_SERVER['DOCUMENT_ROOT'].'/_assets/quote/uploads/';
$folderName = $this->quote->getCompanyDetails()->companyName;
$folderName = str_replace(" ", "_", $folderName);
$folderName = strtolower($folderName);
if(!is_dir($location.$folderName))
{
mkdir($location.$folderName);
chmod($location.$folderName, 0777);
//Set File Settings
$config['upload_path'] = $location.$folderName;
$config['allowed_types'] = 'jpg|png|pdf';
$config['file_name'] = $conceptOne;
$config['remove_spaces'] = TRUE;
$config['overwrite'] = TRUE;
$config['max_size'] = '1024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
print_r($config);
if(!$this->upload->do_upload($conceptOne)) { #= try upload
$data['uploadError'] = array('uploadError' => $this->upload->display_errors()); #Error
$this->load->view('layout', $data);
} // Do upload
else{
$data = array('upload_data' => $this->upload->data($conceptOne));
}// end else
}// end if folder

Answer 1

You need a loop to reinitialize the file upload library so that you can process some other images that are uploaded by the user.
Let's say a user uploaded 2 images. Then that means you need to put the code that initialize the file upload library and do the file upload inside that loop.
for ($i = 0; $i < 2; $i++)
{
// Change the config here if necessary
$this->upload->initialize($config);
// Call do_upload() here
}

Answer 2

Kemal is right: you have to iterate over the files you have. I would put the "concepts" in an array, so you can use foreach:
// Load upload library without any configuration
$this->load->library('upload');
$concepts = array('conceptOne','conceptTwo');
$location = $_SERVER['DOCUMENT_ROOT'].'/_assets/quote/uploads/';
$folderName = $this->quote->getCompanyDetails()->companyName;
$folderName = str_replace(" ", "_", $folderName);
$folderName = strtolower($folderName);
if(!is_dir($location.$folderName))
{
mkdir($location.$folderName);
chmod($location.$folderName, 0777);
}
$config['upload_path'] = $location.$folderName;
$config['allowed_types'] = 'jpg|png|pdf';
$config['remove_spaces'] = TRUE;
$config['overwrite'] = TRUE;
$config['max_size'] = '1024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
// Upload 'concepts'
foreach($concepts as $concept)
{
$config['file_name'] = $concept;
$this->upload->initialize($config);
$this->upload->do_upload($concept);
}
// Upload logo
$config['file_name'] = 'logo-filename.gif';
$this->upload->initialize($config);
$this->upload->do_upload('logo');