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Smashing Conf New York

You know, we use ad-blockers as well. We gotta keep those servers running though. Did you know that we publish useful books and run friendly conferences — crafted for pros like yourself? E.g. our upcoming SmashingConf New York, dedicated to smart front-end techniques and design patterns.

Author:

Hallo, my name is Daniel :) I build plugins, themes and apps - then proceed to write or talk about them. I'm the editor for the WordPress section here on Smashing Magazine and I contribute to various other online sites. When not coding or writing you'll find me playing board games or running with my dog. Drop me a line on Twitter or visit my personal website.

Twitter: Follow Daniel Pataki on Twitter

Google Profile: https://plus.google.com/+DanielPataki/posts

The Definitive Guide To WordPress Hooks

If you’re into WordPress development, you can’t ignore hooks for long before you have to delve into them head on. Modifying WordPress core files is a big no-no, so whenever you want to change existing functionality or create new functionality, you will have to turn to hooks.

wp-hooks-guide

In this article, I would like to dispel some of the confusion around hooks, because not only are they the way to code in WordPress, but they also teach us a great design pattern for development in general. Explaining this in depth will take a bit of time, but bear with me: by the end, you’ll be able to jumble hooks around like a pro.

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WordPress Essentials: How To Create A WordPress Plugin

WordPress plugins are PHP scripts that alter your website. The changes could be anything from the simplest tweak in the header to a more drastic makeover (such as changing how log-ins work, triggering emails to be sent, and much more).

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Whereas themes modify the look of your website, plugins change how it functions. With plugins, you can create custom post types, add new tables to your database to track popular articles, automatically link your contents folder to a “CDN” server such as Amazon S3… you get the picture.

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How To Interact With The WordPress Database

While many functions you already use in WordPress communicate with the database there is an easy and safe way to do this directly using the $wpdb class. Built on the great ezsql class by Justin Vincent, $wpdbwill allow you to address queries to any table in your database, and it will also help you handle the return data. Since this is built in WP functionality, there is no need to open a separate database connection (you would be duplicating code in this case), and there is no need to do hacks, like modifying a result set after it has been queried.

$wpdb class

In this article I will show you how to get started with the $wpdb class, how to retrieve data from your WordPress database and how to run more advanced queries which update or delete something in the db. The techniques here will remove some of the contraints that you run into with functions like get_posts() or wp_list_categories(), allowing you to tailor the queries you make to your specific needs. This method can also make your website more efficient by only getting the needed data, nothing more, nothing less.

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Better Image Management With WordPress

With the advent of sophisticated and user-friendly content management systems like WordPress, textual content has become increasingly easier to manage. The architecture of these systems aims to deliver a well-formed code foundation; this means that if you are a good writer, then your content will be just as awesome as the structure and quality of the code that runs it.

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However, media handling is, by nature, not the greatest. In many cases, images are used merely to make the website look good, not to supplement the content. Little care is usually taken to make these elements as useful as their textual counterparts. They are often tacked on as an afterthought; the owner thinks, “If all of my posts have an image, surely I should find something quickly for this next one as well.”

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