Metadata (meta-fields custom-fields) (tag)
WP_Query: How to Compare Meta Fields values in meta_query Request
How to compare meta fields in WP_Query using meta_query; Universal method for comparing meta fields in WP_Query.
Kama_Post_Meta_Box — Create Posts Meta-fields (MetaBoxes)
In this article I'm going to share a Kama Post Meta Box class, with which you can quickly create meta-fields for posts, just by specifying them as an array. It's a kind...