Uploading an image in codeigniter - image

Question

I am trying to upload an image,create thumbnail but i get an error.
Here is my controller.
<?php
class Upload extends Controller {
function Upload()
{
parent::Controller();
$this->load->helper(array('form','url','file'));
}
function index()
{
$this->load->view('upload_form'); //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_success', $data); //Picture Upload View
}
}
?>
My model:
<?php
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
$this->db->insert('pictures');
}
}
}
?>
The error:
A PHP Error was encountered
Severity: Warning
Message: rename(C:/wamp/www/uploads/Heaven_Clouds.jpg,/pictures/kFttl7lpE7Rk.jpg) [function.rename]: No such file or directory
Filename: models/Process_image.php
Line Number: 68
This is line 68:
rename($value['full_path'],'/pictures/'.$newimagename);

Answer 1

Remove the "/" before "picutres" in
rename($value['full_path'],'/pictures/'.$newimagename);
It wanna say that you want put your renamed file in a directory named "pictures" placed at the root of an Unix file system, then you're obviously in a Windows system and you do not seem to have a "pictures" directory at the root of your disk.
result :
rename($value['full_path'],'pictures/'.$newimagename);

Answer 2

This is a very simple script taken partly from the CI Docs:
$config['upload_path'] = 'uploads/cgm/';
$config['allowed_types'] = 'gif|jpg|png|bmp|jpeg';
$config['max_size'] = '0';
$config['max_width'] = '0';
$config['max_height'] = '0';
$this->load->library('upload', $config);
$configThumb = array();
$configThumb['image_library'] = 'gd2';
$configThumb['source_image'] = '';
$configThumb['create_thumb'] = TRUE;
$configThumb['maintain_ratio'] = TRUE;
$configThumb['width'] = 100;
$configThumb['height'] = 120;
$this->load->library('image_lib');
for($i = 1; $i < 6; $i++) {
$upload = $this->upload->do_upload('file'.$i);
if($upload === FALSE) continue;
$data = $this->upload->data();
$uploadedFiles[$i] = $data;
$imgName = $this->pictures_m->addPicture(array('listing_id' => $listing_id, 'ext' => $data['file_ext'], 'picture_name' => $this->input->post('file'.$i.'name')));
if($data['is_image'] == 1) {
$configThumb['source_image'] = $data['full_path'];
$configThumb['new_image'] = $data['file_path'].$imgName.$data['file_ext'];
$this->image_lib->initialize($configThumb);
$this->image_lib->resize();
}
rename($data['full_path'], $data['file_path'].$imgName.$data['file_ext']);
}
this will take 5 images, but if you only have one, you can just change the for loop.

Answer 3

i had the same problem but, in my scenario i've to only upload the array of files so i did some small changes to the library 'Upload.php'
view
<form encrypt="multipart/form-data" ...>
<input type="file" name="your_name[]" />
<input type="file" name="your_name[]" />
<input type="submit" />
</form>
controller
for($i = 0; $i < count($_FILES['your_name']['name']); $i++) {
$config['upload_path'] = 'your upload path';
$this->upload->initialize($config);
$this->upload->do_upload('listing_images', $i);
endfor;
if you have single file to upload then duplicate the function in system/libraries/Upload.php
function do_upload($field) to function do_upload_array($field, $i)
put [$i] index on lines 160, 162, 196, 197
and
function _file_mime_type($_FILES[$field]) to function _file_mime_type_array($_FILES[$field], $i)
and put [$i] index on lines 1026, 1043, 1057 and 1065
thats it...
your file array will upload easily now....