# Amazon S3 features and options in the Amazon SDK for PHP Version 3
<a name="s3-sdk-features"></a>

This topic discusses additional features and options provided by Amazon SDK for PHP Version 3 to work with Amazon S3.

**Topics**
+ [Multi-Region client](s3-multiregion-client.md)
+ [Stream wrapper](s3-stream-wrapper.md)
+ [Transfer files and directories](s3-transfers.md)
+ [Client side encryption](s3-encryption-client.md)
+ [Data integrity protection with checksums](s3-checksums.md)