2020-05-02 / 5444阅 / 悠然
注册WordPress的进口商。
(string)
(Required)
Importer tag. Used to uniquely identify importer.
(string)
(Required)
Importer name and title.
(string)
(Required)
Importer description.
(callable)
(Required)
Callback to run.
(WP_Error) Returns WP_Error when $callback is WP_Error.