Using WordPress ‘get_parent_theme_file_path()’ PHP function
Retrieves the path of a file in the parent theme.
HTTPS
Using WordPress ‘get_plugin_page_hook()’ PHP function
Gets the hook attached to the administrative page of a plugin.
Using WordPress ‘get_post_class()’ PHP function
Retrieves an array of the class names for the post container element.
Using WordPress ‘get_previous_post_link()’ PHP function
Retrieves the previous post link that is adjacent to the current post.