The document outlines steps to migrate data from an old DynamoDB table and S3 bucket to new ones using the AWS SDK for PHP version 3. It discusses:
1. Scanning the old DynamoDB table and copying records to a WriteRequestBatch for the new table.
2. Using S3 copy object commands to copy files from the old bucket to new while updating URLs in DynamoDB records.
3. Executing the copy commands and flushing the WriteRequestBatch to complete the migration.
11. •Asyncrequests with FutureResultobjects and a Promise API
•Support for custom HTTP adapters
–cURLno longer required (still the default)
–Possible to implement with non-blocking event loops
•Result "Paginators" for iterating paginated data
•JMESPathquerying of result data
•"debug" client option for easy debugging
45. // Automatically switches to multipart uploads
// if the file is larger than default threshold.
$result=$s3->upload(
'selphpies',
$file->getClientOriginalName(),
fopen($file->getPathname(), 'r'),
'public-read'
);