传输服务器后，Codeigniter调整大小问题

Question

The code was working like a charm for me. But I have now transferred the files from one server to another, and it is not working now. The image is being uploaded (original) -> image.jpg but the other two images after resize thumb_image.jpg and featured_image.jpg are not being uploaded. I dont know what the problem is.

I went through the error log and I see these 3 lines of codes

ERROR - 2013-09-08 17:38:26 --> PNG images are not supported.
ERROR - 2013-09-08 17:38:26 --> The path to the image is not correct.
ERROR - 2013-09-08 17:38:26 --> Your server does not support the GD function required to process this type of image.

I dont understand whats the issue with the image path and why does it says PNG images are not supported as it was working perfectly fine.

The resize code is

public function resizeIMG($imagePath, $filename){

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

        $configThumb['image_library'] = 'gd2';
        $configThumb['source_image']    = $imagePath; 
        $configThumb['create_thumb'] = FALSE;
        $configThumb['new_image'] = 'thumb_'.$filename;
        $configThumb['maintain_ratio'] = TRUE;
        $configThumb['width']    = 260;
        $configThumb['height']  = 215;


        $configFeatured['image_library'] = 'gd2';
        $configFeatured['source_image'] = $imagePath; 
        $configFeatured['create_thumb'] = FALSE;
        $configFeatured['new_image'] = 'featured_'.$filename;
        $configFeatured['maintain_ratio'] = TRUE;
        $configFeatured['width']     = 800;
        $configFeatured['height']   = 500;


        $configCropFeatured['image_library'] = 'gd2';
        $configCropFeatured['source_image'] = './uploads/featured_'.$filename;
        $configCropFeatured['x_axis'] = '0';
        $configCropFeatured['y_axis'] = '0'; 
        $configCropFeatured['create_thumb'] = FALSE;
        $configCropFeatured['new_image'] = 'featured_'.$filename;
        $configCropFeatured['maintain_ratio'] = FALSE;
        $configCropFeatured['width']     = 720;
        $configCropFeatured['height']   = 250;

        $this->image_lib->initialize($configThumb);
        $this->image_lib->resize();
        $this->image_lib->initialize($configFeatured);
        $this->image_lib->resize();

        $this->image_lib->initialize($configCropFeatured);
        $this->image_lib->crop();


    }

Answer 1

The logs say Your server does not support the GD function required to process this type of image. which means that your server host has not enabled the GD library (or possibly banned the functions you are using for whatever reason)

You will need to contact your webhost to see if they can enable GD. If not, you will need to convert your application to use a different library. You can find out which libraries are available by running phpinfo() inside a PHP script. If GD is disabled, it's most likely that instead, ImageMagick is turned on - you can check out that page and you will be able to convert your application to use ImageMagick once you understand the basic functions. Please make sure that ImageMagick (or imagick) is somewhere in phpinfo(). If not, you're probably best asking your host to enable either of the plugins.