A complete PHP class you can download right away (examples included). Login with MySQL and Sessions, account registration, password security and more.

SQL injections are one of the most dangerous attacks against web applications. With this guide you will learn how to stay safe (using the “three essential steps” for security and prevention) and how to protect your PHP code.

This post focuses on how to handle time zones and daylight-saving time changes.
As a web developer, sooner or later you will need to deal with time zones. This is your chance to master this topic, so keep reading and feel free to ask any questions in the comments.

In this second part of the guide you will see the most important time related PHP functions and how to use them properly. You will also learn how to solve the leap seconds problem introduced in part 1 (with a complete example).