php aws.s3 上传文件，下载文件

亚马逊的s3存储功能

// 上传文件
 vendor("aws.phar");
        $credentials = new Credentials('key' , '密钥');
        $s3Client = new S3Client([
            'credentials' => $credentials,
            'region' => 'us-west-2',//地区
            'version' => 'latest',
            'http' => ['verify' => false],
            "use_path_style_endpoint"=>true
        ]);
        $fileName = "/test.jpg";//存储的文件名
        $bucketName = '桶名字';
        try {
            $status = $s3Client->putObject([
                'Bucket' => $bucketName,
                'Key' => $fileName,
                'SourceFile' => ROOT_PATH . 'public/uploadfile/chosePt.png'
            ]);
            echo "Uploaded $fileName to $bucketName.\n";
        } catch (\Exception $exception) {
            echo "Failed to upload $fileName with error: " . $exception->getMessage();
            exit("Please fix error with file upload before continuing.");
        }

//获取临时下载文件url
        $cmd = $s3Client->getCommand('GetObject', [
            'Bucket' => $bucketName,
            'Key' => $fileName
        ]);
        $request = $s3Client->createPresignedRequest($cmd, '+5 minutes');

// Get the actual presigned-url
        $presignedUrl = (string)$request->getUri();
        print_r($presignedUrl);