This post gives an introduction to the complications that can arise from deploying your PHP applications onto a load balanced web hosting platform. This is a must-read article if you are planning to develop large scale web applications, or if your software will be deployed on a large range of platforms (as is the case for many open source projects).
The Develop rock-solid code in PHP series is about solving practical real-life problems in medium- to large-scale applications. With a sharp focus on new features available in PHP 4, the articles shed light on numerous tips and tricks that make life easier. Inside, you will find plenty of examples and techniques to learn, with lots of sample code. In this first article, PHP veteran Amol Hatwar gives a higher perspective for designing and writing bug-free, maintainable code for medium- to large-scale Web applications.
Trust is everything in this day and age. You have to trust a lot of people, from the guy who gives you directions to your local plumber. After all, you're not always the authority. However, when developing applications for the web, you must assume the role of authority. Otherwise, the user will assume the role, which is a big gamble: total data integrity, data corruption, or diversion of data -- if the user is the authority, you don't know what the results will be.
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