First, ensure you have PHP installed on your server. Then, install the AWS SDK for PHP via Composer by running `composer require aws/aws-sdk-php`. This SDK will allow you to interact with AWS services, including DynamoDB, from your WooCommerce setup.

Set up your AWS credentials to authenticate requests to DynamoDB. Create an IAM user in the AWS Management Console with permissions for DynamoDB access. Download the credentials and save them in a secure location. Configure the SDK by placing your credentials in a file named `credentials` located at `~/.aws/credentials` on your server:
```
[default]
aws_access_key_id = YOUR_ACCESS_KEY
aws_secret_access_key = YOUR_SECRET_KEY
```

Extract the data you wish to transfer from WooCommerce. You can do this by writing a PHP script that queries the WooCommerce database directly using SQL. Connect to your WooCommerce MySQL database and retrieve the data you need, such as orders, products, or customer information.

DynamoDB requires data to be in a JSON-like format. Use your PHP script to transform the extracted data into an array format suitable for DynamoDB. Ensure data types are correctly mapped, e.g., strings, numbers, and booleans.

Use the AWS SDK for PHP to initialize a DynamoDB client within your script. Set the region and version:
```php
use Aws\DynamoDb\DynamoDbClient;

$dynamoDb = new DynamoDbClient([
'region' => 'us-west-2',
'version' => 'latest'
]);
```

DynamoDB supports batch writing for efficiency. Use the `batchWriteItem` method to insert the transformed data into DynamoDB. Ensure you handle any errors or exceptions, and respect DynamoDB's write capacity limits by chunking large datasets:
```php
$dynamoDb->batchWriteItem([
'RequestItems' => [
'YourTableName' => [
[
'PutRequest' => [
'Item' => $yourTransformedDataArray
]
]
]
]
]);
```

After the data transfer, verify the integrity of the data in DynamoDB. Cross-check a sample of records to ensure they match the WooCommerce data. Use the DynamoDB console or write additional scripts to perform these checks. If discrepancies are found, adjust the transformation logic and re-run the affected batches.

By following these steps, you can efficiently move data from WooCommerce to DynamoDB without relying on third-party tools or integrations.