It sounds a lot like a buzzword for developers, but what is data binding exactly? Is it even useful? In short, absolutely. Chances are you’ll be working with some sort of data in Flex. With data bindings, a developer can link data automatically between sources and targets. Still confused? Imagine a label set to automatically display the value of a selected button. It’s a simple concept that has an incredible amount of usefulness when building RIA’s. On second thought, let’s just build it.
Having a site visitor fill out a form is the primary way to gather information. Forms are the main line of communication with anyone that visits your site, so taking the time to make sure users fill them out correctly is key. Using PHP, we are able to ensure that all fields are properly filled out before submission, with required adjustments being called to attention through the use of error messages.
Centering a website is a key part of many CSS layouts. While there are many ways to do it in a variety of situations, the following is an explanation that is purely CSS, avoids messing with percentages, and is compatible with all modern browsers.