オブジェクト内のデータの一部だけが必要な場合は、部分ダウンロードを使用して特定のコンテンツをダウンロードできます。

次のコードを実行して、[0、4] の範囲のオブジェクトの内容をローカルメモリにダウンロードします。

<? php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\OssClient;

//It is highly risky to log on with AccessKey of an Alibaba Cloud account because the account has permissions on all the APIs in OSS. We recommend that you log on as a RAM user to access APIs or perform routine operations and maintenance. To create a RAM account, log on to https://ram.console.aliyun.com.
$accessKeyId = "<yourAccessKeyId>";
$accessKeySecret = "<yourAccessKeySecret>";
//This example uses the endpoint China East 1 (Hangzhou). Specify the actual endpoint based on your requirements.
$endpoint = "http://oss-cn-hangzhou.aliyuncs.com";
$bucket= "<yourBucketName>";
$object = "<yourObjectName>";
// Obtain data between the starting byte value of 0 and the maximum byte value of 4 inclusive (that is, a total of 5 bytes). If the specified value range is invalid, for example, the specified range includes a negative number, or the specified value is larger than the object size, the entire object is downloaded.
$options = array(OssClient::OSS_RANGE => '0-4');
try{
    $ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint);

    $content = $ossClient->getObject($bucket, $object, $options);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}
print ($content);
print(__FUNCTION__ . ": OK" . "\n");