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WordPress

apply_filters( 'postmeta_form_keys', array|null $keys, WP_Post $post )

Since
4.4.0
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.

Compatibility

WordPress
since 4.4.0
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in every tracked release (6.7.7 to 7.1.0).

Parameters

$keysarray|null
Pre-defined meta keys to be used in place of a postmeta query. Default null.
$postWP_Post
The current post object.

Where this hook fires · 1

  • wp-admin/includes/template.php:707meta_form()

Source code

View on Trac View on GitHub 

	 *	 * @since 4.4.0	 *	 * @param array|null $keys Pre-defined meta keys to be used in place of a postmeta query. Default null.	 * @param WP_Post    $post The current post object.	 */	$keys = apply_filters( 'postmeta_form_keys', null, $post ); 	if ( null === $keys ) {		/**		 * Filters the number of custom fields to retrieve for the drop-down		 * in the Custom Fields meta box.		 *

Changelog

Introduced in 4.4.0. Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

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