update_(meta_type)_meta action-hook . WP 2.9.0

Fires immediately before updating metadata of a specific type.

The dynamic portion of the hook, $meta_type, refers to the meta object type (comment, post, term, or user).

Usage

add_action( 'update_(meta_type)_meta', 'action_function_name_5414', 10, 4 );
function action_function_name_5414( $meta_id, $object_id, $meta_key, $meta_value ){
	// action...
}

$meta_id(int)

ID of the metadata entry to update.

$object_id(int)

Object ID.

$meta_key(string)

Meta key.

$meta_value(mixed)

Meta value.

Where the hook is called

do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );

Where the hook is used (in WP core)