How to Use AI to Write WordPress Code

(We may earn commission via links on this website, at no extra cost to you) Learn more.

Estimated reading time: 5 Min

Here we show how to use AI to write WordPress code for tasks like creating plugins, shortcodes, theme customisations, and more, with practical examples.

Whether you’re a beginner with minimal coding knowledge or an experienced developer looking to streamline your workflow, AI can help you write WordPress code quickly and effectively.

AI has revolutionised the way we approach problem-solving, including coding.

For WordPress developers and site owners, AI offers an efficient way to create custom functionality, improve performance, and save time.

Realise though that you need to have some idea about how to code and to use the result; I recommend that you find a course and get some practice first.

What AI Tools Can Help You Write WordPress Code?

There are several AI-powered tools that can assist with WordPress development. Here are some of the most popular ones:

1. ChatGPT is ideal for generating code snippets, answering coding queries, and explaining complex functions in plain language.
2. CodeWP is specifically designed for WordPress, offering ready-to-use solutions for common tasks like custom queries, hooks, and filters.
3. GitHub Copilot Integrates with your Integrated Development Environment (IDE) to suggest lines of code or entire functions as you type.
4. Tabnine is focused on AI-assisted code completion for multiple languages, including PHP and JavaScript.

What to Look For in an AI Tool

• Ability to generate PHP, HTML, CSS, and JavaScript code.
• Knowledge of WordPress-specific functions and APIs.
• Easy integration with your development environment.

Setting Up Your Environment

Before using AI to write WordPress code, you need a properly configured environment to test and refine the generated code.

1. Install a Local WordPress Setup
   Use tools like LocalWP, XAMPP, or MAMP to create a testing environment on your computer.
2. Understand Basic WordPress Structure
   Familiarise yourself with essential files like functions.php, wp-config.php, and style.css.
3. Use a Staging Site
   Always test AI-generated code on a staging site before applying it to a live website to prevent errors or downtime.

Using AI to Write Common WordPress Code Snippets

AI can help you quickly create code snippets for tasks that would otherwise take hours to research and write.

Here are a few examples:

Creating a Custom Shortcode

A shortcode lets you add dynamic content to your posts or pages.

Here’s an example of using AI to generate one:

Prompt to AI: Write a PHP function for a WordPress shortcode that displays the 5 latest blog posts.

AI-Generated Code

function latest_posts_shortcode() {
    $args = array(
        'numberposts' => 5,
        'post_status' => 'publish'
    );
    $recent_posts = wp_get_recent_posts($args);
    $output = '<ul>';
    foreach ($recent_posts as $post) {
        $output .= '<li><a href="' . get_permalink($post['ID']) . '">' . $post['post_title'] . '</a></li>';
    }
    $output .= '</ul>';
    return $output;
}
add_shortcode('latest_posts', 'latest_posts_shortcode');

Add this to your functions.php file, and use [latest_posts] in a post or page.

Creating Plugins with AI

Plugins extend WordPress functionality without modifying core files.

AI can help you create plugins from scratch or modify existing ones.

Example: A Plugin for Custom Post Types

Prompt to AI: Write a WordPress plugin that creates a custom post type for “Books” with title, author, and genre.

AI-Generated Code:

<?php
/*
Plugin Name: Custom Post Type - Books
Description: Adds a custom post type for Books.
Version: 1.0
Author: Your Name
*/

function create_books_cpt() {
    $args = array(
        'labels' => array(
            'name' => 'Books',
            'singular_name' => 'Book'
        ),
        'public' => true,
        'has_archive' => true,
        'supports' => array('title', 'editor', 'custom-fields')
    );
    register_post_type('book', $args);
}
add_action('init', 'create_books_cpt');

Save this code as a .php file and upload it to your WordPress wp-content/plugins directory.

Customising Themes Using AI

Theme customisations often involve modifying the functions.php file, templates, or adding custom CSS.

AI can assist by generating precise code for your needs.

Example: Adding a Custom Widget Area

Prompt to AI: Write a function to add a widget area to the WordPress sidebar.

AI-Generated Code

function custom_sidebar() {
    register_sidebar(array(
        'name' => 'Custom Sidebar',
        'id' => 'custom-sidebar',
        'before_widget' => '<div class="widget">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>',
    ));
}
add_action('widgets_init', 'custom_sidebar');

Add this to your functions.php file, then assign widgets to the new sidebar in your WordPress admin area.

Debugging and Optimising WordPress Code with AI

AI can also help identify and resolve errors in your code. Provide the problematic code to the AI and ask for debugging suggestions.

Example: Fixing a Syntax Error

Prompt to AI: Debug this PHP code that displays recent posts but throws an error. (Paste the problematic code.)

AI Response: The AI analyses the code, identifies the syntax error, and suggests corrections.

Best Practices When Using AI for WordPress Code

1. Validate Generated Code
   Use tools like PHP Code Checker to ensure syntax is correct.
2. Follow WordPress Standards
   Refer to the WordPress Coding Standards for best practices.
3. Test Thoroughly
   Test AI-generated code in a controlled environment.
4. Understand the Code
   Even if AI generates it, take time to review and understand the logic.
5. Secure Your Site
   Ensure the code doesn’t introduce vulnerabilities, such as unfiltered user input or unsecured database queries.

FAQs: Use AI To Write WordPress Code

Summary

AI is a powerful ally for WordPress developers and site owners, offering a faster, more efficient way to generate code.

By using AI responsibly, validating outputs, and continuously learning, you can leverage this technology to build better websites and expand your capabilities.

Start experimenting today, and unlock new possibilities for your WordPress projects.
😉
Richard