register_post_meta( string $post_type, string $meta_key, array $args )

Registers a meta key for posts.

Description Description

Parameters Parameters


(string) (Required) Post type to register a meta key for. Pass an empty string to register the meta key across all existing post types.


(string) (Required) The meta key to register.


(array) (Required) Data used to describe the meta key when registered. See register_meta() for a list of supported arguments.

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Return Return

(bool) True if the meta key was successfully registered, false if not.

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Source Source

File: wp-includes/post.php

function register_post_meta( $post_type, $meta_key, array $args ) {
	$args['object_subtype'] = $post_type;

	return register_meta( 'post', $meta_key, $args );

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Changelog Changelog

Version Description
4.9.8 Introduced.

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