Using WordPress ‘delete_post_meta_by_key()’ PHP function
Deletes everything from post meta matching the given meta key.
Delete
Using WordPress ‘delete_metadata_by_mid()’ PHP function
The `delete_metadata_by_mid()` function in WordPress allows users to delete metadata by its mid instead of its id
Using WordPress ‘create_initial_post_types()’ PHP function
Creates the initial post types when ‘init’ action is fired.
Using WordPress ‘get_comment_ID()’ PHP function
The `get_comment_ID()` function in WordPress retrieves the comment ID of the current comment for use in various operations such as displaying comments, creating anchors, and updating or deleting comments