​The `link_categories_meta_box()` function in WordPress allows users to display link categories form fields using the current link object, which can be useful for managing links and their categories in the…

Retrieves the name of the highest priority template file that exists.

Finds a block template with equal or higher specificity than a given PHP template file.

Loads the translation data for the given script handle and text domain.

Loads the translated strings for a plugin residing in the mu-plugins directory.

​The `load_image_to_edit()` function in WordPress is used to load an image resource for editing, taking into account its attachment ID, mime type, and size

Outputs a post’s public meta data in the Custom Fields meta box.

Returns a listing of all files in the specified folder and all subdirectories up to 100 levels deep.

​The `link_xfn_meta_box()` function in WordPress is used to display XFN form fields for a specified link object