如果您想删除具有指定$meta_key 的所有条目(无论字段值如何),请为$meta_value 使用空值(源文件可参考这里) function delete_post_meta( $post_id, $meta_key, $meta_value = '' ) { // Make sure meta is deleted from the post, not from a revision. $the_post = wp_is_post_revision( $post_...
delete_post_meta( int $post_id, string $meta_key, mixed $meta_value = '' ) Remove metadata matching criteria from a post. description You ca…