 |  | From Scott Orgera, your About Programming Editor | | It feels like summer just began here in the States, but alas the time is fast approaching for shorter days and colder temperatures. As you begin preparing to spend more time indoors, let's get cracking on that code you've been putting off for the past couple of months! September's first edition of the programming newsletter helps you get started with a helping of great articles and tutorials... | |  | Sign up for more free newsletters: | | | | The GD library is used for dynamic image creation. From PHP we use the GD library to create GIF, PNG or JPG images instantly from our code. This allows us to do things such as create charts on the fly, create an an anti-robot security image, create thumbnail images, or even build images from other images.
If you are unsure if you have GD library, you can run phpinfo() to check that GD Support is enabled. If you don't have it, you can download it for free. This tutorial will cover the very basics of creating your first image. You should already have some PHP knowledge before you start. READ NOW | |  | Perl has a lot of handy, built-in shorthand for some of the more common expressions and structures. For example, a list is often made up of single words or elements, and writing all of that data out in the normal fashion can quickly become cumbersome and difficult to read. READ NOW
| |  | Developments in what you can do with JavaScript means that we can now write our JavaScript validation in a way that is completely unobtrusive, and which does not require any addition to a semantically coded form. Rather it only requires that a script tag is added immediately before the | | | | |