unregister_meta_key()

unregister_meta_key() — Unregisters a meta key from the list of registered keys.

Inputs: $object_type (string): Type of object metadata is for. Accepts ‘blog’, ‘post’, ‘comment’, ‘term’, ‘user’, or any other object type with an associated meta table. $meta_key (string): Metadata key. $object_subtype (string): Optional. The subtype of the object type. Default empty string.

Returns bool: True if successful. False if the meta key was not registered.