如何使用aws sdk php同步存储桶中的文件

From the cli, I use a command like this /usr/bin/aws s3 sync $LOCALPATH $REMOTEPATH --metadata-directive REPLACE --cache-control max-age=$TTL

Is there a similar command in the aws sdk php that will upload the contents of a local directory AND delete the files in the bucket that aren't present in the local directory?

No, there is no similar command in the AWS SDK for PHP that will upload the contents of a local directory AND delete the files in the bucket that aren't present in the local directory.