Question

I’m trying to resize an image using codeigniter’s image lib library. Pretty simple. However, the image isn’t resized and moreover, the function returns true, display_errors() doesn’t show any errors.

Here’s my config that I’m passing to the image lib:

    //A file is uploaded using codeigniter's upload library, then:

    $imgData = $this->upload->data();

    $config['image_library'] = 'GD';
    $config['source_image'] = $imgData['full_path'];
    $config['new_image']    = $imgData['full_path'];
    $config['create_thumb'] = false;
    $config['maintain_ratio'] = true;
    $config['width'] = $newWidth;
    $config['height'] = $newHeight;

A print_r of $config after its been set:

Array
(
    [image_library] => GD
    [source_image] => C:/wamp/www/uploads/8ddbfb2cce91ee314e1f296355aec8c6.jpg
    [new_image] => C:/wamp/www/uploads/8ddbfb2cce91ee314e1f296355aec8c6.jpg
    [create_thumb] => 
    [maintain_ratio] => 1
    [width] => 400
    [height] => 350
)

The paths are correct, however the image remains untouched after resizing.

Doing a var_dump on $this->image_lib->display_errors() returns this:

string '' (length=0)

If it makes any difference, the images are being uploaded through Uploadify.

Any ideas on what’s wrong?

Answer 1

Try to set the full path from your document root and not from C.
Try this code:

if($this->upload->do_upload()){
    $this->load->library('image_lib');

    $config_res['source_image'] = 'uploads/'.$this->upload->file_name;
    $config_res['maintain_ratio'] = TRUE;
    $config_res['width'] = $newWidth;
    $config_res['height'] = $newHeight;


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

    $this->image_lib->resize();

    $this->image_lib->clear();
}
else{
     echo $this->upload->display_errors();
}

in this way you don’t need to specify the new_image and it will be overwritten