Hooks in wp-includes/meta.php

WP version: 5.5

Important! Some hooks get applied in multiple files. If you are trying to figure out what a specific hook does, you need to look in all the files that apply the hook. Click the "details" link next to any hook for more information.

• To sort the table, click on a column title.
• Click a hook name to see details about the hook.

	Hook		Type	New?	File
1	added_{$meta_type}_meta	note	action	no	wp-includes/meta.php
2	add_{$meta_type}_meta	note	action	no	wp-includes/meta.php
3	add_{$meta_type}_metadata	note	filter	no	wp-includes/meta.php
4	default_{$meta_type}_metadata	note	filter	YES	wp-includes/meta.php
5	deleted_postmeta		action	no	wp-includes/meta.php
6	deleted_{$meta_type}meta	note	action	no	wp-includes/meta.php
7	deleted_{$meta_type}_meta	note	action	no	wp-includes/meta.php
8	deleted_{$meta_type}_meta	note	action	no	wp-includes/meta.php
9	delete_postmeta		action	no	wp-includes/meta.php
10	delete_{$meta_type}meta	note	action	no	wp-includes/meta.php
11	delete_{$meta_type}_meta	note	action	no	wp-includes/meta.php
12	delete_{$meta_type}_meta	note	action	no	wp-includes/meta.php
13	delete_{$meta_type}_metadata	note	filter	no	wp-includes/meta.php
14	delete_{$meta_type}_metadata_by_mid	note	filter	no	wp-includes/meta.php
15	get_object_subtype_{$object_type}	note	filter	no	wp-includes/meta.php
16	get_{$meta_type}_metadata	note	filter	no	wp-includes/meta.php
17	get_{$meta_type}_metadata	note	filter	no	wp-includes/meta.php
18	get_{$meta_type}_metadata_by_mid	note	filter	no	wp-includes/meta.php
19	is_protected_meta		filter	no	wp-includes/meta.php
20	register_meta_args		filter	no	wp-includes/meta.php
21	sanitize_{$object_type}_meta_{$meta_key}	note	filter	no	wp-includes/meta.php
22	sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}	note	filter	no	wp-includes/meta.php
23	updated_postmeta		action	no	wp-includes/meta.php
24	updated_postmeta		action	no	wp-includes/meta.php
25	updated_{$meta_type}_meta	note	action	no	wp-includes/meta.php
26	updated_{$meta_type}_meta	note	action	no	wp-includes/meta.php
27	update_postmeta		action	no	wp-includes/meta.php
28	update_postmeta		action	no	wp-includes/meta.php
29	update_{$meta_type}_meta	note	action	no	wp-includes/meta.php
30	update_{$meta_type}_meta	note	action	no	wp-includes/meta.php
31	update_{$meta_type}_metadata	note	filter	no	wp-includes/meta.php
32	update_{$meta_type}_metadata_by_mid	note	filter	no	wp-includes/meta.php
33	update_{$meta_type}_metadata_cache	note	filter	no	wp-includes/meta.php

Important warning about variable hooks

Some hooks have variables in their names. For example, pre_${taxonomy}_$field and admin_head- both have variable names. In general, any hook that ends (or begins) with - or _, or contains a $, has a variable name. Since the syntax with which these variables are defined may change from version to version, this page may think that a hook is deprecated (or new) even if it is not. You can usually catch this sort of thing by comparing this hook to the list of "related hooks" below.