Hooks in wp-includes/functions.php

WP version: 2.9

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_option		action	YES	wp-includes/functions.php
2	added_postmeta		action	no	wp-includes/functions.php
3	add_option		action	YES	wp-includes/functions.php
4	add_option_{$name}	note	action	no	wp-includes/functions.php
5	add_site_option_{$key}	note	action	YES	wp-includes/functions.php
6	all_options		filter	no	wp-includes/functions.php
7	date_i18n		filter	no	wp-includes/functions.php
8	deleted_option		action	YES	wp-includes/functions.php
9	deleted_postmeta		action	no	wp-includes/functions.php
10	delete_option		action	YES	wp-includes/functions.php
11	delete_postmeta		action	no	wp-includes/functions.php
12	delete_site_option_{$key}	note	action	YES	wp-includes/functions.php
13	deprecated_file_included		action	no	wp-includes/functions.php
14	deprecated_file_trigger_error		filter	no	wp-includes/functions.php
15	deprecated_function_run		action	no	wp-includes/functions.php
16	deprecated_function_trigger_error		filter	no	wp-includes/functions.php
17	do_robotstxt		action	no	wp-includes/functions.php
18	explain_nonce_{$action}	note	filter	no	wp-includes/functions.php
19	explain_nonce_{$verb}-{$noun}	note	filter	no	wp-includes/functions.php
20	ext2type		filter	no	wp-includes/functions.php
21	extra_{$context}_headers	note	filter	YES	wp-includes/functions.php
22	load_default_embeds		filter	YES	wp-includes/functions.php
23	load_default_widgets		filter	no	wp-includes/functions.php
24	nocache_headers		filter	no	wp-includes/functions.php
25	number_format_i18n		filter	no	wp-includes/functions.php
26	option_{$setting}	note	filter	no	wp-includes/functions.php
27	pre_add_site_option_{$key}	note	filter	YES	wp-includes/functions.php
28	pre_option_{$option->option_name}	note	filter	no	wp-includes/functions.php
29	pre_option_{$setting}	note	filter	no	wp-includes/functions.php
30	pre_site_option_{$key}	note	filter	YES	wp-includes/functions.php
31	pre_site_transient_{$transient}	note	filter	YES	wp-includes/functions.php
32	pre_transient_{$transient}	note	filter	no	wp-includes/functions.php
33	pre_update_option_{$option_name}	note	filter	no	wp-includes/functions.php
34	pre_update_site_option_{$key}	note	filter	YES	wp-includes/functions.php
35	site_option_{$key}	note	filter	YES	wp-includes/functions.php
36	site_transient_{$transient}	note	filter	YES	wp-includes/functions.php
37	status_header		filter	no	wp-includes/functions.php
38	timezone_support		filter	no	wp-includes/functions.php
39	transient_{$transient}	note	filter	no	wp-includes/functions.php
40	updated_option		action	YES	wp-includes/functions.php
41	update_option		action	YES	wp-includes/functions.php
42	update_option_{$option_name}	note	action	no	wp-includes/functions.php
43	update_site_option_{$key}	note	action	YES	wp-includes/functions.php
44	upload_dir		filter	no	wp-includes/functions.php
45	upload_mimes		filter	no	wp-includes/functions.php
46	{$hook}	note	action	no	wp-includes/functions.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.