A PHP script for protecting multiple downloads by the use of unique URLs. The actual file on the server is not discoverable and each URL will only be valid for a certain period of time and number of uses.

Minifi.de is a URL shortening service like tinyurl.com, bit.ly, and is.gd. You enter a long URL and it returns a shorter one.

A PHP script to protect a download by generating a unique link. Each time you visit a page, a unique link is created that can be shared. The link will expire after a certain amount of time or number of uses. With some work, this could be integrated with your Paypal “thank you” page.

A simple web page that you can upload to your web site for testing a MySQL database connection.

Here’s how I’m implementing my solution to the lost update concurrency issue by comparing timestamps generated when a record is saved and accessed.

How to resolve an issue with pages external to WordPress being sent with a 404 status.