PHP S3 Examples

Creating a Connection

This creates a connection so that you can interact with the server.

define('AWS_KEY', 'place access key here');
define('AWS_SECRET_KEY', 'place secret key here');
define('AWS_CANONICAL_ID', 'your DHO Username');
define('AWS_CANONICAL_NAME', 'Also your DHO Username!');
$HOST = '';

// require the amazon sdk for php library
require_once 'AWSSDKforPHP/sdk.class.php';

// Instantiate the S3 class and point it at the desired host
$Connection = new AmazonS3(array(
        'key' => AWS_KEY,
        'secret' => AWS_SECRET_KEY,
        'canonical_id' => AWS_CANONICAL_ID,
        'canonical_name' => AWS_CANONICAL_NAME,

// Set the S3 class to use
// instead of

Listing Owned Buckets

This gets a list of CFSimpleXML objects representing buckets that you own. This also prints out the bucket name and creation date of each bucket.

$ListResponse = $Connection->list_buckets();
$Buckets = $ListResponse->body->Buckets->Bucket;
foreach ($Buckets as $Bucket) {
        echo $Bucket->Name . "\t" . $Bucket->CreationDate . "\n";

The output will look something like this:

mahbuckat1   2011-04-21T18:05:39.000Z
mahbuckat2   2011-04-21T18:05:48.000Z
mahbuckat3   2011-04-21T18:07:18.000Z

Creating a Bucket

This creates a new bucket called my-new-bucket and returns a CFResponse object.


This command requires a region as the second argument, so we use AmazonS3::REGION_US_E1, because this constant is ''

$Connection->create_bucket('my-new-bucket', AmazonS3::REGION_US_E1);

List a Bucket’s Content

This gets an array of CFSimpleXML objects representing the objects in the bucket. This then prints out each object’s name, the file size, and last modified date.

$ObjectsListResponse = $Connection->list_objects($bucketname);
$Objects = $ObjectsListResponse->body->Contents;
foreach ($Objects as $Object) {
        echo $Object->Key . "\t" . $Object->Size . "\t" . $Object->LastModified . "\n";


If there are more than 1000 objects in this bucket, you need to check $ObjectListResponse->body->isTruncated and run again with the name of the last key listed. Keep doing this until isTruncated is not true.

The output will look something like this if the bucket has some files:

myphoto1.jpg 251262  2011-08-08T21:35:48.000Z
myphoto2.jpg 262518  2011-08-08T21:38:01.000Z

Deleting a Bucket

This deletes the bucket called my-old-bucket and returns a CFResponse object


The Bucket must be empty! Otherwise it won’t work!


Forced Delte for Non-empty Buckets

This will delete the bucket even if it is not empty.

$Connection->delete_bucket('my-old-bucket', 1);

Creating an Object

This creates an object hello.txt with the string "Hello World!"

$Connection->create_object('my-bucket-name', 'hello.txt', array(
        'body' => "Hello World!",

Change an Object’s ACL

This makes the object hello.txt to be publicly readable and secret_plans.txt to be private.

$Connection->set_object_acl('my-bucket-name', 'hello.txt', AmazonS3::ACL_PUBLIC);
$Connection->set_object_acl('my-bucket-name', 'secret_plans.txt', AmazonS3::ACL_PRIVATE);

Delete an Object

This deletes the object goodbye.txt

$Connection->delete_object('my-bucket-name', 'goodbye.txt');

Download an Object (to a file)

This downloads the object poetry.pdf and saves it in /home/larry/documents/

$FileHandle = fopen('/home/larry/documents/poetry.pdf', 'w+');
$Connection->get_object('my-bucket-name', 'poetry.pdf', array(
        'fileDownload' => $FileHandle,

Generate Object Download URLs (signed and unsigned)

This generates an unsigned download URL for hello.txt. This works because we made hello.txt public by setting the ACL above. This then generates a signed download URL for secret_plans.txt that will work for 1 hour. Signed download URLs will work for the time period even if the object is private (when the time period is up, the URL will stop working).

my $plans_url = $Connection->get_object_url('my-bucket-name', 'hello.txt');
echo $plans_url . "\n";
my $secret_url = $Connection->get_object_url('my-bucket-name', 'secret_plans.txt', '1 hour');
echo $secret_url . "\n";

The output of this will look something like: