add_post_meta()

描述

Post meta data is called "Custom Fields">

参数

$post_id

(int)
(Required)
Post ID.

$meta_key

(string)
(Required)
Metadata name.

$meta_value

(mixed)
(Required)
Metadata value. Must be serializable if non-scalar.

$unique

(bool)
(Optional)
Whether the same key should not be added.

Default value: false