New plugin hooks in WordPress 1.5.2

Important! Some WordPress hooks get applied in multiple PHP files. If you are trying to figure out what a specific WordPress hook does, sort the table by "hook" and make sure you are looking in all the files where it occurs.

• To sort the table, click on a column title.
• Click a hook name to see details about the hook.
• Click a file name to see only hooks used in that file.

	Hook		Type	New?	Instances
1	template_redirect		action	YES	1
2	comment_id_not_found		action	YES	1
3	comment_closed		action	YES	1
4	comment_on_draft		action	YES	1
5	wp_logout		action	YES	1
6	lost_password		action	YES	1
7	retreive_password		action	YES	1
8	retrieve_password		action	YES	1
9	password_reset		action	YES	1
10	wp_authenticate		action	YES	1
11	wp_login		action	YES	1
12	user_register		action	YES	1
13	core_files_loaded		action	YES	1
14	plugins_loaded		action	YES	1
15	init		action	YES	1
16	pingback_post		action	YES	1
17	check_admin_referer		action	YES	1
18	switch_theme		action	YES	1
19	{$page_hook}	note	action	YES	1
20	add_category		action	YES	1
21	delete_category		action	YES	1
22	edit_form_advanced		action	YES	1
23	simple_edit_form		action	YES	1
24	edit_page_form		action	YES	1
25	manage_posts_custom_column		action	YES	1
26	admin_menu		action	YES	1
27	save_post		action	YES	1
28	private_to_published		action	YES	1
29	check_passwords		action	YES	1
30	comment_form		action	YES	1
31	parse_query		action	YES	1
32	generate_rewrite_rules		action	YES	1
33	wp_set_comment_status		action	YES	1
34	wp_blacklist_check		action	YES	1
35	comment_flood_trigger		action	YES	1
36	wp_footer		action	YES	1
37	wp_meta		action	YES	1
38	query_vars		filter	YES	1
39	query_string		filter	YES	1
40	xmlrpc_methods		filter	YES	1
41	content_save_pre		filter	YES	1
42	manage_posts_columns		filter	YES	1
43	excerpt_save_pre		filter	YES	1
44	title_save_pre		filter	YES	1
45	category_save_pre		filter	YES	1
46	status_save_pre		filter	YES	1
47	name_save_pre		filter	YES	1
48	content_edit_pre		filter	YES	1
49	excerpt_edit_pre		filter	YES	1
50	title_edit_pre		filter	YES	1
51	comment_edit_pre		filter	YES	1
52	comment_save_pre		filter	YES	1
53	default_content		filter	YES	1
54	default_title		filter	YES	1
55	default_excerpt		filter	YES	1
56	show_password_fields		filter	YES	1
57	posts_where		filter	YES	1
58	posts_join		filter	YES	1
59	posts_where_paged		filter	YES	1
60	posts_join_paged		filter	YES	1
61	posts_orderby		filter	YES	1
62	the_posts		filter	YES	1
63	post_rewrite_rules		filter	YES	1
64	date_rewrite_rules		filter	YES	1
65	root_rewrite_rules		filter	YES	1
66	comments_rewrite_rules		filter	YES	1
67	search_rewrite_rules		filter	YES	1
68	category_rewrite_rules		filter	YES	1
69	author_rewrite_rules		filter	YES	1
70	page_rewrite_rules		filter	YES	1
71	rewrite_rules_array		filter	YES	1
72	mod_rewrite_rules		filter	YES	1
73	rewrite_rules		filter	YES	1
74	comments_template		filter	YES	1
75	get_comments_number		filter	YES	1
76	comments_number		filter	YES	1
77	get_comment_ID		filter	YES	1
78	get_comment_author		filter	YES	1
79	get_comment_author_email		filter	YES	1
80	get_comment_author_link		filter	YES	1
81	get_comment_type		filter	YES	1
82	get_comment_author_url		filter	YES	1
83	get_comment_author_url_link		filter	YES	1
84	get_comment_author_IP		filter	YES	1
85	get_comment_text		filter	YES	1
86	get_comment_excerpt		filter	YES	1
87	get_comment_date		filter	YES	1
88	get_comment_time		filter	YES	1
89	comment_author_rss		filter	YES	1
90	comment_text_rss		filter	YES	1
91	post_comments_feed_link		filter	YES	1
92	author_feed_link		filter	YES	1
93	category_feed_link		filter	YES	1
94	preprocess_comment		filter	YES	1
95	pre_user_id		filter	YES	1
96	pre_comment_author_name		filter	YES	1
97	pre_comment_author_email		filter	YES	1
98	pre_comment_author_url		filter	YES	1
99	pre_comment_content		filter	YES	1
100	comment_content_presave		filter	YES	1
101	pre_comment_user_ip		filter	YES	1
102	pre_comment_user_domain		filter	YES	1
103	pre_comment_user_agent		filter	YES	1
104	pre_comment_approved		filter	YES	1
105	option_{$setting}	note	filter	YES	1
106	pre_option_{$option->option_name}	note	filter	YES	1
107	all_options		filter	YES	1
108	theme_root		filter	YES	1
109	theme_root_uri		filter	YES	1
110	stylesheet		filter	YES	1
111	stylesheet_directory		filter	YES	1
112	stylesheet_directory_uri		filter	YES	1
113	stylesheet_uri		filter	YES	1
114	template		filter	YES	1
115	template_directory		filter	YES	1
116	template_directory_uri		filter	YES	1
117	{$type}_template	note	filter	YES	1
118	category_template		filter	YES	1
119	home_template		filter	YES	1
120	page_template		filter	YES	1
121	comments_popup_template		filter	YES	1
122	link_rating		filter	YES	1
123	comment_notification_text		filter	YES	1
124	comment_notification_subject		filter	YES	1
125	comment_notification_headers		filter	YES	1
126	comment_moderation_text		filter	YES	1
127	comment_moderation_subject		filter	YES	1
128	the_author_email		filter	YES	1
129	author_link		filter	YES	1
130	category_link		filter	YES	1
131	list_cats_exclusions		filter	YES	1
132	loginout		filter	YES	1
133	register		filter	YES	1
134	get_the_time		filter	YES	1
135	the_permalink		filter	YES	1
136	post_link		filter	YES	1
137	page_link		filter	YES	1
138	year_link		filter	YES	1
139	month_link		filter	YES	1
140	day_link		filter	YES	1
141	feed_link		filter	YES	1
142	get_the_guid		filter	YES	1
143	get_the_excerpt		filter	YES	1
144	wp_list_pages		filter	YES	1
145	locale		filter	YES	1

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.