add_post_type_support()

add_post_type_support() — Registers support of certain features for a post type. All core features are directly associated with a functional area of the edit screen, such as the editor or a meta box. Features include: ‘title’, ‘editor’, ‘comments’, ‘revisions’, ‘trackbacks’, ‘author’, ‘excerpt’, ‘page-attributes’, ‘thumbnail’, ‘custom-fields’, and ‘post-formats’. Additionally, the ‘revisions’ feature dictates whether the post type will store revisions, the ‘autosave’ feature dictates whether the post type will be autosaved, and the ‘comments’ feature dictates whether the comments count will show on the edit screen. A third, optional parameter can also be passed along with a feature to provide additional information about supporting that feature.

Inputs: $post_type (string): The post type for which to add the feature. $feature (string|array): The feature being added, accepts an array of feature strings or a single string.