- Client-tier resources
- Middle-tier resources
Web server, web technology, and PHP resources. In particular, we include pointers to third-party PHP development tools, an introduction to the PHP libraries, and open source projects.
- Database-tier resources
Database theory, SQL, and DBMS-specific resources.
- Security and cryptography resources
Software installation resources are listed at the end of Appendix A.
Client Tier Resources
The W3C web site
http://www.w3.orghas links to many of the web standards, including HTML 4 (
http://www.w3.org/TR/html4/), Cascading Style Sheets, XML, and XHTML. The HTML validator-which was used to validate all examples in this tutorial-can be found at
The HTML Writer's Guild (HWG) is an organization that provides many useful resources to web developers, including links to lists of browser features and HTML validators. Trial membership is free for the first year. The HWG web site is
The original cookie specification was developed by Netscape and can be found at
XHTML 1.0 Recommendations can be found from the W3C site at