Development

Wikipedia page including: an overview, predefined XML entities, HTML character entities in HTML, XHTML special character entities.

Grant's new software development blog

Coding Horror: So You'd Like to Send Some Email (Through Code) - How to program modern email sending.

No reason not to start using it right now. After all, time's proven that implementation of unfinished specifications does work and can be easily mistaken by a complete W3C recommendation.

PHP Manual functions reference section

Portable .net run-time by Ximian/Novell. Allow running .Net, asp.net, Winforms and GTK# applications on Linux, Mac and Windows

NOT FLOSS. Freeware for educational and non-commercial use only Fancy Drop Down Menus with Pure CSS! Using this FREE CSS3 Menu you can create great looking buttons using just CSS3 in a few clicks.

PHP class that emulates a web client. Abandonware, last updated 2008. GPL

RSS and Atom feed parsing in PHP.

This document quickly explains how to install, configure, and use subversion locally, as well as across Apache on a network. For complete and complex configurations and installations seek the documentation provided

Repository of PHP Class Scripts, Tutorials, Book reviews, User groups, Forums and Web hosting comparisons