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get_post_custom_keys › WordPress Function
Since1.2.0
已弃用n/a
› get_post_custom_keys ( $post_id = 0 )
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Retrieves meta field names for a post.
If there are no meta fields, then nothing (null) will be returned.Related Functions: get_post_custom, get_post_custom_values, get_post_ancestors, get_post_states, get_post_time