Latavish’s Multiple Image Upload w/ Thumbnail Generation
Hi CI lovers,
I hope you guys had a GREAT and EXTENDED weekend. Been working on this for a few days now and finally finished up this weekend and wanted to share my work with this great community. Now this code is really customizable so feel free to trick it out to fit your needs. Code may not be perfect because I designed this to fit my needs on a project that i’m doing. (a nice CMS) If you find this code useful all I require is a simple thanks! TeeHee!! 
Happy Coding…
Features:
Upload Multiple Images at once
Automatically Renames Images to a random name (protects file from being overwritten)
Adds Image Information to DB
C O N T R O L L E R
class Upload extends Controller {
function Upload()
{
parent::Controller();
$this->load->helper(array('form','url','file'));
}
function index()
{
$this->load->view('upload/upload_index'); //Upload Form
}
function picupload()
{
//Load Model
$this->load->model('Process_image');
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '2048'; //2 meg
$this->load->library('upload');
foreach($_FILES as $key => $value)
{
if( ! empty($key['name']))
{
$this->upload->initialize($config);
if ( ! $this->upload->do_upload($key))
{
$errors[] = $this->upload->display_errors();
}
else
{
$this->Process_image->process_pic();
}
}
}
$data['success'] = 'Thank You, Files Upladed!';
$this->load->view('upload/upload_pictures', $data); //Picture Upload View
}
M O D E L
class Process_image extends Model {
function Process_image()
{
parent::Model();
$this->load->library('image_lib');
//Generate random Activation code
function generate_code($length = 10){
if ($length <= 0)
{
return false;
}
$code = "";
$chars = "abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ123456789";
srand((double)microtime() * 1000000);
for ($i = 0; $i < $length; $i++)
{
$code = $code . substr($chars, rand() % strlen($chars), 1);
}
return $code;
}
}
function process_pic()
{
//Connect to database
$this->load->database();
//Get File Data Info
$uploads = array($this->upload->data());
$this->load->library('image_lib');
//Move Files To User Folder
foreach($uploads as $key[] => $value)
{
//Gen Random code for new file name
$randomcode = generate_code(12);
$newimagename = $randomcode.$value['file_ext'];
//Creat Thumbnail
$config['image_library'] = 'GD2';
$config['source_image'] = $value['full_path'];
$config['create_thumb'] = TRUE;
$config['thumb_marker'] = '_tn';
$config['master_dim'] = 'width';
$config['quality'] = 75;
$config['maintain_ratio'] = TRUE;
$config['width'] = 175;
$config['height'] = 175;
$config['new_image'] = '/pictures/'.$newimagename;
//$this->image_lib->clear();
$this->image_lib->initialize($config);
//$this->load->library('image_lib', $config);
$this->image_lib->resize();
//Move Uploaded Files with NEW Random name
rename($value['full_path'],'/pictures/'.$newimagename);
//Make Some Variables for Database
$imagename = $newimagename;
$thumbnail = $randomcode.'_tn'.$value['file_ext'];
$filesize = $value['file_size'];
$width = $value['image_width'];
$height = $value['image_height'];
$timestamp = time();
//Add Pic Info To Database
$this->db->set('imagename', $imagename);
$this->db->set('thumbnail', $thumbnail);
$this->db->set('filesize', $filesize);
$this->db->set('width', $width);
$this->db->set('height', $height);
$this->db->set('timestamp', $timestamp);
//Insert Info Into Database
$this->db->insert('pictures');
}
}
