PHP has many little hidden features within its vast tool set. One of these features is its uncanny capability to handle complex files. Sure, everyone knows that PHP can open a file, but what can it really do with that file? Not many PHP developers ever have the need to get down to the file level of content manipulation. This session will show them how easily PHP can do this low-level work, and what aspects of it they should be careful of when they are “down there”.