Learn how to use the WordPress `get_file()` PHP function to retrieve and display the content of files stored on your website using the WordPress CMS.\end{code}
The `get_parent_post_rel_link()` function in WordPress retrieves the parent post's relational link, which can be used for navigation or other purposes
The `get_plugin_data()` function in WordPress is used to parse plugin contents and retrieve its metadata such as name, version, and required WordPress version