PHP & MySQL
Introduction to Databases
Introduction to Databases – Digital Web Magazine
A great introduction for people who want a big picture view of databases and their purpose on the Web.
PHPitfalls: Five Beginner Mistakes to Avoid
PHPitfalls: Five Beginner Mistakes to Avoid – Digital Web Magazine – If you are new to PHP, this article should prove quite helpful.
Interesting Things to Know about MySQL
CSS + PHP: Organized and Optimized?
Print Vs. Echo
Danny ‘dynacker’ Lee provides an interesting experiment, measuring the difference in speed between the two commands for sending data to the client in PHP (Web browser, command line, or a file). Check out Print Vs. Echo. Echo, is much faster than print.
Note that this is not a static page, each time you hit it, the page runs the experiment. Pretty damn cool.