WordPress relies heavily on database queries to fetch and display content dynamically. While its built-in WP_Query class is powerful, improper usage can lead to performance issues. This guide explores how WP_Query works internally, optimization techniques, and caching strategies to reduce load time. How WP_Query Works Internally WP_Query is the main class responsible for retrieving posts in WordPress. It interacts with the database by generating SQL queries based on the parameters provided....

WordPress REST API is a powerful feature that allows developers to interact with WordPress data using HTTP requests. It enables seamless integration with external applications, mobile apps, and custom front-end frameworks like React and Vue.js. In this guide, we will explore how the REST API works internally, how to create custom endpoints, and how to secure API requests with authentication. How WordPress REST API Works Internally WordPress REST API is built on top of standard HTTP methods...

WordPress, despite being originally built in a procedural style, has incorporated Object-Oriented Programming (OOP) concepts extensively over the years. Internally, WordPress uses OOP in several key areas to manage its core functionalities efficiently. Here’s a breakdown of how it applies OOP principles: 1. Class-Based Structure WordPress defines many of its core features using PHP classes. Some examples include: WP_Query – Handles database queries for retrieving posts....