Hooks in wp-includes/functions.php

WP version: 5.1

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	send_site_admin_email_change_email		filter	no	wp-includes/functions.php
2	date_i18n		filter	no	wp-includes/functions.php
3	iis7_supports_permalinks		filter	no	wp-includes/functions.php
4	get_main_network_id		filter	no	wp-includes/functions.php
5	global_terms_enabled		filter	no	wp-includes/functions.php
6	extra_{$context}_headers	note	filter	no	wp-includes/functions.php
7	kses_allowed_protocols		filter	no	wp-includes/functions.php
8	wp_checkdate		filter	no	wp-includes/functions.php
9	wp_auth_check_load		filter	no	wp-includes/functions.php
10	wp_auth_check_same_domain		filter	no	wp-includes/functions.php
11	wp_delete_file		filter	no	wp-includes/functions.php
12	admin_memory_limit		filter	no	wp-includes/functions.php
13	image_memory_limit		filter	no	wp-includes/functions.php
14	{$context}_memory_limit	note	filter	no	wp-includes/functions.php
15	doing_it_wrong_trigger_error		filter	no	wp-includes/functions.php
16	site_admin_email_change_email		filter	no	wp-includes/functions.php
17	wp_privacy_anonymize_data		filter	no	wp-includes/functions.php
18	wp_privacy_exports_dir		filter	no	wp-includes/functions.php
19	wp_privacy_exports_url		filter	no	wp-includes/functions.php
20	wp_privacy_export_expiration		filter	no	wp-includes/functions.php
21	do_feed_{$feed}	note	action	no	wp-includes/functions.php
22	do_robotstxt		action	no	wp-includes/functions.php
23	deprecated_function_run		action	no	wp-includes/functions.php
24	deprecated_constructor_run		action	no	wp-includes/functions.php
25	deprecated_file_included		action	no	wp-includes/functions.php
26	deprecated_argument_run		action	no	wp-includes/functions.php
27	deprecated_hook_run		action	no	wp-includes/functions.php
28	doing_it_wrong_run		action	no	wp-includes/functions.php
29	wp_check_filetype_and_ext		filter	no	wp-includes/functions.php
30	number_format_i18n		filter	no	wp-includes/functions.php
31	enclosure_links		filter	no	wp-includes/functions.php
32	removable_query_args		filter	no	wp-includes/functions.php
33	status_header		filter	no	wp-includes/functions.php
34	nocache_headers		filter	no	wp-includes/functions.php
35	robots_txt		filter	no	wp-includes/functions.php
36	upload_dir		filter	no	wp-includes/functions.php
37	wp_unique_filename		filter	no	wp-includes/functions.php
38	wp_unique_filename		filter	no	wp-includes/functions.php
39	wp_upload_bits		filter	no	wp-includes/functions.php
40	wp_handle_upload		filter	no	wp-includes/functions.php
41	getimagesize_mimes_to_exts		filter	no	wp-includes/functions.php
42	deprecated_hook_trigger_error		filter	no	wp-includes/functions.php
43	mime_types		filter	no	wp-includes/functions.php
44	ext2type		filter	no	wp-includes/functions.php
45	upload_mimes		filter	no	wp-includes/functions.php
46	wp_die_ajax_handler		filter	no	wp-includes/functions.php
47	wp_die_xmlrpc_handler		filter	no	wp-includes/functions.php
48	wp_die_handler		filter	no	wp-includes/functions.php
49	smilies		filter	no	wp-includes/functions.php
50	load_default_widgets		filter	no	wp-includes/functions.php
51	deprecated_function_trigger_error		filter	no	wp-includes/functions.php
52	deprecated_constructor_trigger_error		filter	no	wp-includes/functions.php
53	deprecated_file_trigger_error		filter	no	wp-includes/functions.php
54	deprecated_argument_trigger_error		filter	no	wp-includes/functions.php
55	wp_die_json_handler		filter	YES	wp-includes/functions.php
56	wp_update_php_url		filter	YES	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.