使用CodeIgniter动态调整图像大小

Question

我正在编写一个从Dropbox下载文件的脚本,应该调整该图像的大小,然后将其拍摄到S3存储桶.

出于某种原因,我无法让图像调整大小.

我不断收到以下错误:
图像的路径不正确.您的服务器不支持处理此类图像所需的GD功能.

代码库:

public function resize_test() {
            $postcard_assets = $this->conn->getPostcardDirContent("folder_name", "Photos", TRUE);

            foreach($postcard_assets['contents'] as $asset) {
                $file = pathinfo($asset['path']);
                $original_file = $this->conn->downloadFile($asset['path']);

                $raw_file = sha1($file['basename']);
                $s3_file_name = "1_{$raw_file}.{$file['extension']}";
                $this->resize_photo($original_file);
                $this->s3->putObject($s3_file_name, $original_file, 's3-bucket-name', 'public-read');

                $s3_check = $this->s3->getObjectInfo($s3_file_name, 's3-bucket-name');

                if($s3_check['content-length'] > 0) {
                    krumo($s3_check);
                    exit();
                }
            }
        }

private function resize_photo($photo) {
            $config['image_library'] = 'imagemagick';
            $config['source_image'] = $photo;
            $config['maintain_ratio'] = TRUE;
            $config['width']     = 640;
            $config['height']   = 480;

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

            if(!$this->image_lib->resize()) {
                exit($this->image_lib->display_errors());
            }
        }

Dropbox API DownloadFile:

    public function downloadFile($file) {
        $this->setTokens();
        return $this->conn->getFile($file);
    }

谁知道我可能做错了什么？

Answer 1

不要多次加载image_lib.在autoload库中添加image_lib并进行更改

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

至

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