Codeigniter upload library get thumb file name

Question

I can't find any documentation on this. I'm uploading images and using

$config['create_thumb'] = TRUE; 

to create a thumb and preserve the original image.

Is there a way to get the file name of the thumb image? _thumb is automatically added in the name for thumbnails but there's no function to extract the full name.

Answer 1

There really is a much easier way of doing this:

if ($this->upload->do_upload())  // If file was uploaded
{           
    $data = $this->upload->data(); // Returns information about your uploaded file.
    $thumbnail = $data['raw_name'].'_thumb'.$data['file_ext']; // Here it is
}

Answer 2

CodeIgniter not providing any functions to extract the thumbnail name. It will add _thumb in your filename. If you want to write a custom function to get thumbnail name then use this.

function generate_thumb($filename, $path = '')
{
    // if path is not given use default path //
    if (!$path) {
        $path = FCPATH . 'somedir' . DIRECTORY_SEPARATOR . 'images' . DIRECTORY_SEPARATOR;
    }

    $config['image_library'] = 'gd2';
    $config['source_image'] = $path . $filename;
    $config['create_thumb'] = TRUE;
    $config['maintain_ratio'] = TRUE;
    $config['width'] = 75;
    $config['height'] = 50;

    $this->load->library('image_lib', $config);

    if (!$this->image_lib->resize()) {
        echo $this->image_lib->display_errors();
        return FALSE;
    }
    // get file extension //
    preg_match('/(?<extension>\.\w+)$/im', $filename, $matches);
    $extension = $matches['extension'];
    // thumbnail //
    $thumbnail = preg_replace('/(\.\w+)$/im', '', $filename) . '_thumb' . $extension;
    return $thumbnail;
}

Input :

echo generate_thumb('someimage.jpg');
echo generate_thumb('other_image.png', FCPATH . 'dirname' . DIRECTORY_SEPARATOR);

Output :

someimage_thumb.jpg
other_image_thumb.png

Hope this helps your. Thank you!!