Add a link to using values provided in $_POST.

Updates or inserts a link using values provided in $_POST.

Retrieves the default link for editing.

Retrieves link data based on its ID.

Deletes a specified link from the database.

Retrieves the link category IDs associated with the link specified.

Inserts a link into the database, or updates an existing link.

Outputs the ‘disabled’ message for the WordPress Link Manager.

Update link with the specified link categories.

Updates a link in the database.