Sometimes it is convenient to “fake” a file — the user has requested a file, but it it needs to be generated or processed before it is sent out.

Using CSS to Produce Tables with Fixed Headers and Scrolling Bodies

If you’ve been secluded under a rock for the past decade, lost on a desert island, kidnapped by aliens or in a coma, you may have missed the news about HTML5. The news is that it’s here, mostly.

If you haven’t heard of JavaScript Closures, then you’re in for some good news and some good news and some bad news. Roughly speaking, closures describe how JavaScript variables are inherited in nested functions.

One of the most important aspects of using JavaScript is responding to user events. When the user clicks on something, types something or even sits and stares, it is possible for JavaScript to respond.

If you come from a different programming or scripting language, you probably thought you knew all about functions. However, JavaScript has a few surprises for you which may confuse or delight you, depending on what you had in mind.

An object is a package or collection of data. This data may be simple, such as strings and numbers, or it may be more complex. In particular, the object can also contain other objects.

In Principal, you can set up a Web Server by individually finding and installing the appropriate packages. In practice, you might prefer to install one of the pre-packaged versions.

Website owners who maintain user details have a great responsibility. Apart from keeping the database safe and sound, you will have to ensure that user passwords are kept safe and secure.

Much has been said about the merits of Responsive Websites, and, for the most part, rightly so. The benefits of building a website which can cope with the plethora of alternative browsing devices must surely be obvious to any developer.

Two of the most difficult things to get right in a responsive design are images and tables. By their very nature, the tend to occupy a certain amount of space, and it is often difficult to work out what to do if the screen is to small to accommodate the whole figure.

Using HTML5 & CSS3, how to make a form which is friendly, but which also validates user data.

Web Forms typically use the special `password` type for password inputs. This hides the password from every body, but unfortunately includes the user. This looks at how to temporarily show the password if the user wants.

SQL includes `null`, which is used to indicate __no value__. The problem is that it doesn’t explain _why_ there is no value. Where we look at adding more meaning to `null` to allow for optional data.

SQL Server is normally to be found only on Windows environments. However, it is possible to install a working version of SQL Server on a Macintosh.

Working with Dates & Times in SQLite, and, possibly, PHP

An important technique is simply to be able to turn property on or off. Once you have done this, you can perform a lot of additional magic using CSS.

For local Web Development, it is useful to be able to emulate a live web site, complete with a Domain Name. This article discusses setting up a Virtual Host on your local server.

Images are one of the most important visual elements of a web page. Here we look at what’s involved in preparing images for the Web.

Navigation is one of the key elements in all modern web sites, and making the navigation look attractive and familiar is going to be an important part of your web design.

HTML tables, when correctly used, can contain many rows and columns of data. If the table is large enough, designers often wish to highlight rows to make them easier to read.