As anyone who's been developing applications (web or otherwise) knows, there are certain things that you just don't do when you're doing things like adding features or changing the code of a production application. There are some general rules to follow and this new article on the PHPClasses.org website reminds us of just a few.
This article describes software development practices that have been used to prevent problems that can break Web sites.
Included in his list are things like:
- Handle unexpected conditions
Test your code - Monitor your site errors and act upon them
- Do not disclose errors to the users
- Do what you can as you can never get defensive enough
