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Book Overview & Buying
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Table Of Contents
WordPress 3.7 Complete: Third Edition - Fourth Edition
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Shortcodes are a handy way to let a nontechnical person, that is, the editor of the website, include dynamic functionality within pages and posts, without having to actually use any PHP, complex HTML structures, or custom JavaScript. In other words, shortcodes are handy reusable pieces of code, yet they don't require any actual coding experience or knowledge on the end user's part.
The way a shortcode works is that you tell WordPress to look at text within square brackets ([]) and evaluate it by running a PHP function. That PHP function can live in your functions.php file of your theme, or in a plugin file, or in a widget file. Let's create a simple shortcode and include it in with our most recent widget, the one we were developing just a minute ago for showing a custom tag cloud.
Shortcodes are a pretty simple concept by definition, but we can still distinguish three main types:
Single-tag shortcodes: These shortcodes are executed...
Change the font size
Change margin width
Change background colour