Mega Upload - Progess Indicator for PHP file Uploads
Since it's release megaupload has become a hot project at sourceforge. This simple solution to an age old php problem has seen over 3000 downloads during the first 50 days of it's life time.
PHP being such a versatile language to work with and FTP being such a simple protocol would tempt anyone to attempt an FTP client from the ground up. This four part article will introduce you to the protocol and help you build you own client. Sample code is included.
Sieve of Eratosthenes implementation.
Getting started with the PHP Java extension.
How to sneak past the settings in your php.ini file that limits the file uploads - with out changing php.ini
Including files in PHP scripts - a comparision.
Unless you store your sessions in a database your web application cannot be load balanced across multiple servers.
Why you should not use the so called template engines
Check this page regularly for updates, there are lots of new articles in the pipeline.