specializing in digital media technologies

Digital Media and Communications Insights, Inc.


Larry Ullman's Blog

The $300 Million Button

If you haven’t yet read it, this article called The $300 Million Button is well worth your five minutes. It’s by Jared M. Spool and posted on the User Interface Engineering Web site. I don’t want to give away the secret of the article, but it discusses a very common practice on e-commerce sites, and how it tests with end users.

Filed under: Web Development — Tags: , ,

PHP Variables: Passing by Value or Reference

An issue to consider when programming is how variables are passed from one context to another. For example, the following code calls a function, referencing a variable in doing so:

$it = 'Larry';
some_function($it);

Will the function receive just the value of that variable (Larry) or will it receive the variable itself? The answer depends upon how the function is defined. In this post, I’ll explain this concept further, in not too-technical terms. (continue reading…)

Filed under: PHP,Web Development

Ajaxload

I StumbledUpon a notable Ajax resource recently, called Ajaxload. This site provides tools for generating an animated GIF that can be used on your site to indicate that something is loading or happening or whatever. Choose a style you like, the background color, the foreground color, and the transparency of the background, then click “Generate it!” and you have a nice, custom graphic. The site’s in beta now and is free; I’m not sure if it’ll remain so or not (hopefully it will).

Filed under: JavaScript,Web Development — Tags:


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