Multiple resizing in CodeIgniter - php

Question

I need to make two images of a single loaded picture. This images must have fixed width, - 180 and 300 pixels.
At the bottom of my current results. This function can resize and create just one of two images. Everybody failed on second image, I trying whole day, but I'm can't find reason. Need help.
$this->_resize($data['upload_data']['file_name'], 300);
$this->_resize($data['upload_data']['file_name'], 180);
private function _resize($file_name, $size) {
$config['image_library'] = 'gd2';
$config['source_image'] = 'img/upload/' . $file_name;
$config['dest_image'] = base_url() . 'img/';
$config['create_thumb'] = TRUE;
$config['thumb_marker'] = '_' . $size;
$config['maintain_ratio'] = FALSE;
$config['width'] = $size;
$config['height'] = $size;
$this->load->library('image_lib', $config);
$result = $this->image_lib->resize();
$this->image_lib->clear();
return;
}
I'm use CodeIgniter 2.02

Answer 1

Dont load image_lib multiple times. Add image_lib in autoload libs and change
$this->load->library('image_lib', $config);
to
$this->image_lib->initialize($config);

Answer 2

This could help you, from user guide
A good practice is use the processing
function conditionally, showing an
error upon failure, like this:
if ( ! $this->image_lib->resize())
{
echo $this->image_lib->display_errors();
}

Answer 3

Nill
Think that problem takes place because on the first run your script moves initial file to another folder. Try to use:
$config['new_image'] = base_url() . 'img/';
instead of
$config['dest_image'] = base_url() . 'img/';

Answer 4

I found myself this problem. In my case, I put the image source and new_image without base_url or REAL_PATH:
public function create_thumbnail($file_name='2012_02_23_15_06_00_1.jpg'){
$this->layout = false;
$image_url = PATH_TO_IMAGE_ARTICLE.DIRECTORY_SEPARATOR;
$config['image_library'] = 'gd2';
$config['source_image'] = 'assets/img/content/article/'.$file_name;
$config['create_thumb'] = FALSE;
$config['maintain_ratio'] = TRUE;
$config['width'] = 210;
$config['height'] = 160;
$config['new_image'] = 'assets/img/content/article/thumb/thumb_' . $file_name;
$this->load->library('image_lib', $config);
if(!$this->image_lib->resize())
{
echo $this->image_lib->display_errors();exit;
}
return TRUE;
}
See?
you don't put
$config['new_image'] = base_url().'assets/img/content/article/thumb/thumb_' . $file_name;
but
$config['new_image'] = 'assets/img/content/article/thumb/thumb_' . $file_name;