Carlo is a freelance front-end designer and developer. In the last years he’s been writing for ioProgrammo, an Italian printed computer magazine, and HTML.it, a popular design and development Italian website.
When he writes articles and tutorials, Carlo mainly deals with web standards, but when he plays with websites his best workmate is WordPress.
This article covers both a theoretical introduction to handling user requests and a concrete application of that theory, particularly, building an advanced search system.
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Starting with version 2.1, WordPress provides the Walker abstract class, with the specific function of traversing these tree-like data structures. But an abstract class does not produce any output by itself. It has to be extended with a concrete child class that builds the HTML bricks for specific lists of items. In this article, Carlo Daniele will explore some of the most common uses of the Walker class. Note, however, that the following examples do not cover all possible applications and alternative ways to take advantage of the class. But you’ll discover more just by making use of your imagination and your skills as a programmer.
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Depending on the website’s architecture, you could store the metadata in a category, a tag, a custom taxonomy or a custom field. In this article Carlo Daniele will show you how to let your website’s subscribers decide when they want notifications, and linked to a particular location. Today you are going to add several functionalities to WordPress’ core, and the CMS allows you to declare our own custom functions in the main file of a plugin.
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