make 2 thumbnails at once in codeigniter

Question

hello everybody! can anyone tell me how to create 2 different thumbnails of same images with different sizes and location in codeigniter. I have created a upload function and another thumbnail generation function, it works fine but can't sort out how to create 2 different thumbnail at accordingly at once. any help will be appreciated.

Answer 1

No built-in way to do this. You'll have to extend the Upload library.

Update: By built-in I meant that the Codeigniter library doesn't support just passing it names of the additional thumbnails. Personally I prefer to extend a given functionality so it can be used somewhere else in the project. Don't repeat yourself style.

Answer 2

So you have a thumbnail_generator function, and say it takes parameters original_file_name, new_file_name, and thumbnail_size.

Just call it twice!

thumbnail_generator( original_file.jpg, new_file_sm.jpg, 300 );
thumbnail_generator( original_file.jpg, new_file_xsm.jpg, 150 );

Answer 3

It's actually pretty easy...

function create_thumbs()
{
    $this->load->library('image_lib');

    $path = "path/to/image/";

    $source_image = "original.jpg";
    $medium_image = "medium.jpg";
    $small_image = "small.jpg";

    // Resize to medium

    $config['source_image'] = $path.$source_image;
    $config['new_image'] = $path.$medium_image;
    $config['width'] = 200;
    $config['height'] = 200;

    $this->image_lib->initialize($config); 

    if ( ! $this->image_lib->resize())
    {
        // an error occured
    }

    // Keep the same source image

    $config['new_image'] = $path.$small_image;
    $config['width'] = 50;
    $config['height'] = 50;

    $this->image_lib->initialize($config); 

    if ( ! $this->image_lib->resize())
    {
        // an error occured
    }
}