Hooks in wp-includes/functions.php

WP version: 6.4

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	admin_memory_limit		filter	no	wp-includes/functions.php
2	cron_memory_limit		filter	no	wp-includes/functions.php
3	date_i18n		filter	no	wp-includes/functions.php
4	deprecated_argument_run		action	no	wp-includes/functions.php
5	deprecated_argument_trigger_error		filter	no	wp-includes/functions.php
6	deprecated_class_run		action	YES	wp-includes/functions.php
7	deprecated_class_trigger_error		filter	YES	wp-includes/functions.php
8	deprecated_constructor_run		action	no	wp-includes/functions.php
9	deprecated_constructor_trigger_error		filter	no	wp-includes/functions.php
10	deprecated_file_included		action	no	wp-includes/functions.php
11	deprecated_file_trigger_error		filter	no	wp-includes/functions.php
12	deprecated_function_run		action	no	wp-includes/functions.php
13	deprecated_function_trigger_error		filter	no	wp-includes/functions.php
14	deprecated_hook_run		action	no	wp-includes/functions.php
15	deprecated_hook_trigger_error		filter	no	wp-includes/functions.php
16	doing_it_wrong_run		action	no	wp-includes/functions.php
17	doing_it_wrong_trigger_error		filter	no	wp-includes/functions.php
18	do_faviconico		action	no	wp-includes/functions.php
19	do_feed_{$feed}	note	action	no	wp-includes/functions.php
20	do_robotstxt		action	no	wp-includes/functions.php
21	enclosure_links		filter	no	wp-includes/functions.php
22	ext2type		filter	no	wp-includes/functions.php
23	extra_{$context}_headers	note	filter	no	wp-includes/functions.php
24	getimagesize_mimes_to_exts		filter	no	wp-includes/functions.php
25	get_main_network_id		filter	no	wp-includes/functions.php
26	iis7_supports_permalinks		filter	no	wp-includes/functions.php
27	image_editor_output_format		filter	no	wp-includes/functions.php
28	image_memory_limit		filter	no	wp-includes/functions.php
29	kses_allowed_protocols		filter	no	wp-includes/functions.php
30	load_default_widgets		filter	no	wp-includes/functions.php
31	mime_types		filter	no	wp-includes/functions.php
32	nocache_headers		filter	no	wp-includes/functions.php
33	number_format_i18n		filter	no	wp-includes/functions.php
34	pre_recurse_dirsize		filter	no	wp-includes/functions.php
35	pre_wp_filesize		filter	no	wp-includes/functions.php
36	pre_wp_unique_filename_file_list		filter	no	wp-includes/functions.php
37	removable_query_args		filter	no	wp-includes/functions.php
38	robots_txt		filter	no	wp-includes/functions.php
39	send_site_admin_email_change_email		filter	no	wp-includes/functions.php
40	site_admin_email_change_email		filter	no	wp-includes/functions.php
41	smilies		filter	no	wp-includes/functions.php
42	status_header		filter	no	wp-includes/functions.php
43	upload_dir		filter	no	wp-includes/functions.php
44	upload_mimes		filter	no	wp-includes/functions.php
45	wp_admin_notice		action	YES	wp-includes/functions.php
46	wp_admin_notice_args		filter	YES	wp-includes/functions.php
47	wp_admin_notice_markup		filter	YES	wp-includes/functions.php
48	wp_auth_check_load		filter	no	wp-includes/functions.php
49	wp_auth_check_same_domain		filter	no	wp-includes/functions.php
50	wp_cache_set_last_changed		action	no	wp-includes/functions.php
51	wp_checkdate		filter	no	wp-includes/functions.php
52	wp_check_filetype_and_ext		filter	no	wp-includes/functions.php
53	wp_date		filter	no	wp-includes/functions.php
54	wp_delete_file		filter	no	wp-includes/functions.php
55	wp_die_ajax_handler		filter	no	wp-includes/functions.php
56	wp_die_handler		filter	no	wp-includes/functions.php
57	wp_die_jsonp_handler		filter	no	wp-includes/functions.php
58	wp_die_json_handler		filter	no	wp-includes/functions.php
59	wp_die_xmlrpc_handler		filter	no	wp-includes/functions.php
60	wp_die_xml_handler		filter	no	wp-includes/functions.php
61	wp_direct_php_update_url		filter	no	wp-includes/functions.php
62	wp_direct_update_https_url		filter	no	wp-includes/functions.php
63	wp_filesize		filter	no	wp-includes/functions.php
64	wp_handle_upload		filter	no	wp-includes/functions.php
65	wp_privacy_anonymize_data		filter	no	wp-includes/functions.php
66	wp_privacy_exports_dir		filter	no	wp-includes/functions.php
67	wp_privacy_exports_url		filter	no	wp-includes/functions.php
68	wp_privacy_export_expiration		filter	no	wp-includes/functions.php
69	wp_trigger_error_run		action	YES	wp-includes/functions.php
70	wp_unique_filename		filter	no	wp-includes/functions.php
71	wp_update_https_url		filter	no	wp-includes/functions.php
72	wp_update_php_url		filter	no	wp-includes/functions.php
73	wp_upload_bits		filter	no	wp-includes/functions.php
74	{$context}_memory_limit	note	filter	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.