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Object Storage Service:Download objects to local memory by using OSS SDK for PHP

Last Updated:Mar 11, 2024

This topic describes how to use Object Storage Service (OSS) SDK for PHP to download specific objects to local memory.

Usage notes

  • In this topic, the public endpoint of the China (Hangzhou) region is used. If you want to access OSS from other Alibaba Cloud services in the same region as OSS, use an internal endpoint. For more information about OSS regions and endpoints, see Regions and endpoints.

  • In this topic, an OSSClient instance is created by using an OSS endpoint. If you want to create an OSSClient instance by using custom domain names or Security Token Service (STS), see Create an OSSClient instance.

  • To download objects to local memory, you must have the oss:GetObject permission. For more information, see Attach a custom policy to a RAM user.


The following sample code provides an example on how to download a specific object to local memory and display the content of the object:

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\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;

// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
$provider = new EnvironmentVariableCredentialsProvider();
// In this example, the endpoint of the China (Hangzhou) region is used. Specify the endpoint based on your business requirements. 
$endpoint = "";
$bucket= "yourBucketName";
// Specify the name of the object. 
$object = "yourObjectName";
    $config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    $ossClient = new OssClient($config);

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

If a power failure occurs, data stored in local memory is lost. To store the downloaded object in a local disk, see Download objects as files.