Using WordPress ‘add_rewrite_tag()’ PHP function
The article provides information on how to use the WordPress `add_rewrite_tag()` function to add a custom data in the URL of your website by calling it within an 'init' hook
PHP
Using WordPress ‘add_post_meta()’ PHP function
The `add_post_meta()` function in WordPress allows developers to add custom metadata to posts using PHP code
Using WordPress ‘add_permastruct()’ PHP function
The `add_permastruct()` function in WordPress allows users to create custom permalink structures by specifying the name, structure, and parameters for the URL rules
Using WordPress ‘add_feed()’ PHP function
The article provides an overview of the WordPress `add_feed()` function, including its purpose, syntax, parameters, examples, and best practices