Never test new code on a live website. Use tools like , XAMPP , or MAMP to create a sandbox on your computer. 2. Locate the Code Files
If you have purchased the book, you typically get access to a GitHub repository or a ZIP file containing the "recipes." Each chapter usually corresponds to a specific folder. 3. Upload to the Plugins Directory Navigate to your local WordPress installation folder. Go to wp-content/plugins/ . Never test new code on a live website
Creating custom administration menus and settings pages. Never test new code on a live website