Question

代码对我来说就像一个魅力。但我现在已经将文件从一台服务器转移到另一台服务器，现在它无法正常工作。图像正在上传（原始） - ＆gt; image.jpg，但调整thumb_image.jpg和featured_image.jpg后的其他两张图片均未上传。我不知道问题是什么。

我浏览了错误日志，我看到了这3行代码

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.

我不明白图像路径的问题是什么，为什么它不支持PNG图像，因为它工作得很好。

调整大小代码

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

日志说Your server does not support the GD function required to process this type of image.表示您的服务器主机未启用GD库（或者可能因任何原因禁用您正在使用的功能）

您需要联系您的虚拟主机，了解他们是否可以启用GD。如果没有，您将需要转换您的应用程序以使用不同的库。您可以通过在PHP脚本中运行phpinfo()来找出可用的库。如果GD被禁用，则最有可能的是，ImageMagick被打开 - 您可以查看该页面，一旦您了解了基本功能，您就可以将应用程序转换为使用ImageMagick。请确保ImageMagick（或imagick）在phpinfo（）的某处。如果没有，你可能最好要求你的主机启用其中一个插件。

传输服务器后，Codeigniter调整大小问题

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