Book Image

Wordpress Development Quick Start Guide

By : Rakhitha Nimesh Ratnayake
Book Image

Wordpress Development Quick Start Guide

By: Rakhitha Nimesh Ratnayake

Overview of this book

WordPress is the most used CMS in the world and is the ideal way to share your knowledge with a large audience or build a profitable business. Getting started with WordPress development has often been a challenge for novice developers, and this book will help you find your way. This book explains the components used in WordPress development, when and where to use them, and why you should be using each component in specific scenarios. You begin by learning the basic development setup and coding standards of WordPress. Then you move into the most important aspects of the theme and plugin development process. Here you will also learn how themes and plugins fit into the website while learning about a range of techniques for extending themes and plugins. With the basics covered, we explore many of the APIs provided by WordPress and how we can leverage them to build rapid solutions. Next, we move on to look at the techniques for capturing, processing, and displaying user data when integrating third-party components into the site design. Finally, you will learn how to test and deploy your work with secure and maintainable code, while providing the best performance for end users.
Table of Contents (16 chapters)
Title Page
Copyright and Credits
Packt Upsell

Executing basic CRUD operations on existing tables

WordPress provides well-optimized built-in methods for accessing the existing database tables. Therefore, we don't need to write our own queries. Let's see how basic Create, Read, Update, Delete (CRUD) operations are executed on existing tables.

Inserting records

All the existing tables contain a pre-built insert functions for creating new records. Some of these functions uses a predefined set of parameters while other functions accepts array of information for inserting the record. Let's take a look at some of the frequently used insert functions:


Creates a new post or page in the wp_posts table. If this is used on an existing post, it will update the existing record. Accepts an array type parameter with all post details.


Creates a new option in the wp_options table, if it doesn’t already exist. Accepts key and value as parameters.


Creates a new user in thewp_users table. Accepts an array type parameter...