AWS SDK for PHP is the Amazon Web Services SDK for PHP. The package allows developers to build applications that interact with Amazon Web Services tools and features.

Features of AWS SDK for PHP:
General Features:
- AWS PHP Libraries - Build PHP applications on top of APIs that take the complexity out of coding directly against a web service interface. The toolkit provides APIs that hide much of the lower-level implementation.
- Code Samples - Practical examples for how to use the toolkit to build applications.
- Documentation - Complete SDK reference documentation with samples demonstrating how to use the SDK.
- PEAR package - The ability to install the AWS SDK for PHP as a PEAR package.
- SDK Compatibility Test - Includes both an HTML-based and a CLI-based SDK Compatibility Test that you can run on your server to determine whether or not your PHP environment meets the minimum requirements.

Supported Services:
- Amazon CloudFront
- Amazon CloudWatch
- Amazon Elastic Compute Cloud (Amazon EC2)
- Amazon Elastic MapReduce
- Amazon Relational Database Service (Amazon RDS)
- Amazon Simple Notification Service (Amazon SNS)
- Amazon Simple Queue Service (Amazon SQS)
- Amazon Simple Storage Service (Amazon S3)
- Amazon SimpleDB
- Amazon Simple Email Service
- Amazon Virtual Private Cloud (Amazon VPC)
- Auto Scaling
- AWS CloudFormation
- AWS Elastic Beanstalk
- AWS Import/Export
- AWS Identity and Access Management
- Elastic Load Balancing

Requirements:
- PHP 5.2 or Higher
- SPL
- cURL with HTTPS support
- PCRE
- JSON
- SimpleXML

What's New in This Version:
- This release adds support for Amazon DynamoDB Local Secondary Indexes, includes an Amazon S3 stream wrapper, and includes other improvements to the SDK and documentation.