2020-05-01 / 2843阅 / 悠然
Retrieves registered metadata for a specified object.
The results include both meta that is registered specifically for the object’s subtype and meta that is registered for the entire object type.
(string)
(Required)
Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table.
(int)
(Required)
ID of the object the metadata is for.
(string)
(Optional)
Registered metadata key. If not specified, retrieve all registered metadata for the specified object.
Default value: ''
(mixed) A single value or array of values for a key if specified. An array of all registered keys and values for an object ID if not. False if a given $meta_key is not registered.