Talking Web Bookmarks to Stories about the Web

This page from the Developer Works site explains seven habits that you should get if you develop for web, even if it is not in PHP, the language they use for example.

List with 18 useful Cheat Sheets for webdesigners and web developers

In this post notepad explains some php code to present paged data, using simple code.

This post lists 6 tips to improve the performance of you php sites.

This post from Reinhold Weber lists 43 tips that you should consider when developing in PHP.

This is a long post from John Lim explains several optimizations you can do in your PHP code, and the differences between optimizing a PHP script for performance or scalability.

This post is a list to several basic (and relevant) techniques for PHP developers.

List of Cheat Sheets useful for frontend developers.

This post on the tutorialzine website explains how to create a Who Is Online widget for your site using jQuery, PHP and MySQL.