The 'add_menu_classes' PHP filter in WordPress allows developers to add custom classes to menu items, providing greater flexibility in styling and functionality.
The article "Using WordPress `add_meta_boxes` PHP Action" explains how to use the `add_meta_boxes` action to add custom meta boxes to various post types in WordPress
The 'months_dropdown_results' PHP filter in WordPress allows developers to modify the output of the dropdown list of months in the archives widget. By using this filter, developers can customize the…