how to add custom code to wordpress

For many code snippets and custom functions, the usage instructions will say something like.   Add this code to your theme functions php file, or add the code via simple custom plugin...   If present in theme, the functions file must be located in the directory of the theme wordpress wp-content themes my-theme functions php.   Then open the in code or editor and add your custom code.   Save the file, upload to the server, and done.   To add custom code snippet, simple plugin will suffice..   At the beginning of your plugin file, add the following lines < php * Plugin Name Simple Custom Plugin Plugin URI https digwp com 2022 02 simple-custom-plugin Description This is simple plugin template for adding custom code to WordPress.   Author Jeff Starr Author URI https plugin-planet com Requires at least 5.9 Tested up to 5.9 Version 1.0 * if ) die add custom code snippets below this line..   the header can be much simpler than what's required for plugins destined for WP Plugin Directory.   Another benefit of custom plugin is how easy it's to disable the functionality just deactivate the plugin...   Read more