In a follow-up to the previous post on the creation of a file manager with PHP, a new piece has shown up, augmenting it with the promise of a secure file manager created in PHP.

This is a follow-up tutorial on "Creating a file manager with PHP", and I highly recommend reading the previous tutorial first, before reading this tutorial.

In the previous tutorial I showed you how to build a simple file manager, which could upload, download, edit and delete, with PHP, but there was one problem: it wasn't completely secure if you had your upload directory in a public place. That's why in this tutorial I'm going to show you how to fix that.

In the new script he helps you rework the previous script, making it a bit safer for your files to be someplace public. One of the keys is creating a "protected file" with a 404 header at the top, thwarting any would-be leachers. He also includes the code for editing and deleting these protected files as if they were normal...