---
title: aws-sdk-php
description: Example of how to configure `aws-sdk-php` to use R2.
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# aws-sdk-php

Example of how to configure `aws-sdk-php` to use R2.

You must [generate an Access Key](https://developers.cloudflare.com/r2/api/tokens/) before getting started. All examples will utilize `access_key_id` and `access_key_secret` variables which represent the **Access Key ID** and **Secret Access Key** values you generated.

  
This example uses version 3 of the [aws-sdk-php ↗](https://packagist.org/packages/aws/aws-sdk-php) package. You must pass in the R2 configuration credentials when instantiating your `S3` service client:

```
<?phprequire 'vendor/aws/aws-autoloader.php';
$bucket_name = "my_bucket";// Provide your Cloudflare account ID$account_id = "<ACCOUNT_ID>";// Retrieve your S3 API credentials for your R2 bucket via API tokens (see: https://developers.cloudflare.com/r2/api/tokens)$access_key_id = "<ACCESS_KEY_ID>";$access_key_secret = "<SECRET_ACCESS_KEY>";
$credentials = new Aws\Credentials\Credentials($access_key_id, $access_key_secret);
$options = [    'region' => 'auto', // Required by SDK but not used by R2    'endpoint' => "https://$account_id.r2.cloudflarestorage.com",    'version' => 'latest',    'credentials' => $credentials];
$s3_client = new Aws\S3\S3Client($options);
$contents = $s3_client->listObjectsV2([    'Bucket' => $bucket_name]);
var_dump($contents['Contents']);
// array(1) {//   [0]=>//   array(5) {//     ["Key"]=>//     string(14) "ferriswasm.png"//     ["LastModified"]=>//     object(Aws\Api\DateTimeResult)#187 (3) {//       ["date"]=>//       string(26) "2022-05-18 17:20:21.670000"//       ["timezone_type"]=>//       int(2)//       ["timezone"]=>//       string(1) "Z"//     }//     ["ETag"]=>//     string(34) ""eb2b891dc67b81755d2b726d9110af16""//     ["Size"]=>//     string(5) "87671"//     ["StorageClass"]=>//     string(8) "STANDARD"//   }// }
$buckets = $s3_client->listBuckets();
var_dump($buckets['Buckets']);
// array(1) {//   [0]=>//   array(2) {//     ["Name"]=>//     string(11) "my-bucket"//     ["CreationDate"]=>//     object(Aws\Api\DateTimeResult)#212 (3) {//       ["date"]=>//       string(26) "2022-05-18 17:19:59.645000"//       ["timezone_type"]=>//       int(2)//       ["timezone"]=>//       string(1) "Z"//     }//   }// }
?>
```

## Generate presigned URLs

You can also generate presigned links that can be used to share public read or write access to a bucket temporarily.

```
$cmd = $s3_client->getCommand('GetObject', [    'Bucket' => $bucket_name,    'Key' => 'ferriswasm.png']);
// The second parameter allows you to determine how long the presigned link is valid.$request = $s3_client->createPresignedRequest($cmd, '+1 hour');
print_r((string)$request->getUri())// https://my-bucket.<ACCOUNT_ID>.r2.cloudflarestorage.com/ferriswasm.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=<credential>&X-Amz-Date=<timestamp>&X-Amz-SignedHeaders=host&X-Amz-Expires=3600&X-Amz-Signature=<signature>
// You can also create links for operations such as putObject to allow temporary write access to a specific key.$cmd = $s3_client->getCommand('PutObject', [    'Bucket' => $bucket_name,    'Key' => 'ferriswasm.png']);
$request = $s3_client->createPresignedRequest($cmd, '+1 hour');
print_r((string)$request->getUri())
```

You can use the link generated by the `putObject` example to upload to the specified bucket and key, until the presigned link expires.

Terminal window

```
curl -X PUT https://my-bucket.<ACCOUNT_ID>.r2.cloudflarestorage.com/ferriswasm.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=<credential>&X-Amz-Date=<timestamp>&X-Amz-SignedHeaders=host&X-Amz-Expires=3600&X-Amz-Signature=<signature> --data-binary @ferriswasm.png
```

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```