Simple script to count AWS DiskSpace usage

awsdiskcount.php

$size = 0;
$count = 0;
$keyMarker = null;
$params = [
    'Bucket' => $bucket
];

do {
    $params['KeyMarker'] = $keyMarker;

    $objects = $s3client->getIterator('ListObjects', $params);

    foreach ($objects as $row) {
        $count++;
        $size += $row['Size'];
    }

    $keyMarker = isset($row['NextMarker']) ?: null;

} while (isset($result['IsTruncated']) && $result['IsTruncated']);


echo sprintf ('%s object in bucket take up %s bytes of space.',
    $count,
    $bucket,
    $size
);