Registers a meta key for posts.

Parameters

$post_typestringrequired

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

$meta_keystringrequired

The meta key to register.

$argsarrayrequired

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

Return

Source

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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