Filters values for the meta key dropdown in the Custom Fields meta box.

Description

Returning a non-null value will effectively short-circuit and avoid a potentially expensive query against postmeta.

Parameters

$keysarray|null

Pre-defined meta keys to be used in place of a postmeta query. Default null.

$postWP_Post

The current post object.

Source

$keys = apply_filters( 'postmeta_form_keys', null, $post );

View all references View on Trac View on GitHub

Changelog