All plugin hooks in WordPress 2.0

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	activate_{$plugin}	note	action	YES	1
2	activity_box_end		action	YES	1
3	add_attachment		action	YES	1
4	add_category		action	no	1
5	add_link		action	YES	1
6	add_ping		filter	YES	1
7	admin_footer		action	no	2
8	admin_head		action	no	1
9	admin_menu		action	no	1
10	all_options		filter	no	1
11	atom_entry		action	YES	1
12	atom_head		action	YES	1
13	atom_ns		action	YES	1
14	attachment_icon		filter	YES	1
15	attachment_innerHTML		filter	YES	1
16	attachment_link		filter	YES	1
17	attachment_max_dims		filter	YES	1
18	author_email		filter	no	1
19	author_feed_link		filter	no	1
20	author_link		filter	no	1
21	author_rewrite_rules		filter	no	1
22	bloginfo		filter	no	1
23	category_description		filter	no	2
24	category_feed_link		filter	no	1
25	category_link		filter	no	1
26	category_rewrite_rules		filter	no	1
27	category_save_pre		filter	no	2
28	category_template		filter	no	1
29	check_admin_referer		action	no	1
30	check_passwords		action	no	1
31	comments_number		filter	no	1
32	comments_popup_template		filter	no	1
33	comments_rewrite_rules		filter	no	1
34	comments_template		filter	no	1
35	comment_author		filter	no	1
36	comment_author_rss		filter	no	1
37	comment_closed		action	no	1
38	comment_edit_pre		filter	no	1
39	comment_email		filter	no	1
40	comment_excerpt		filter	no	1
41	comment_flood_trigger		action	no	1
42	comment_form		action	no	4
43	comment_id_not_found		action	no	1
44	comment_moderation_subject		filter	no	1
45	comment_moderation_text		filter	no	1
46	comment_notification_headers		filter	no	1
47	comment_notification_subject		filter	no	1
48	comment_notification_text		filter	no	1
49	comment_on_draft		action	no	1
50	comment_post		action	no	1
51	comment_save_pre		filter	no	1
52	comment_status_pre		filter	YES	2
53	comment_text		filter	no	1
54	comment_text_rss		filter	no	1
55	comment_url		filter	no	1
56	content_edit_pre		filter	no	1
57	content_save_pre		filter	no	4
58	core_files_loaded		action	no	1
59	create_category		action	YES	1
60	create_user_query		filter	YES	1
61	date_rewrite_rules		filter	no	1
62	day_link		filter	no	2
63	deactivate_{$plugin}	note	action	YES	1
64	default_content		filter	no	1
65	default_excerpt		filter	no	1
66	default_title		filter	no	1
67	delete_attachment		action	YES	1
68	delete_category		action	no	1
69	delete_comment		action	no	2
70	delete_link		action	YES	1
71	delete_post		action	no	1
72	delete_user		action	YES	1
73	edit_attachment		action	YES	1
74	edit_category		action	YES	1
75	edit_comment		action	no	1
76	edit_form_advanced		action	no	1
77	edit_link		action	YES	1
78	edit_page_form		action	no	1
79	edit_post		action	no	1
80	edit_user_profile		action	YES	1
81	excerpt_edit_pre		filter	no	1
82	excerpt_save_pre		filter	no	2
83	feed_link		filter	no	1
84	format_to_edit		filter	no	1
85	format_to_post		filter	no	1
86	generate_rewrite_rules		action	no	1
87	get_comments_number		filter	no	1
88	get_comment_author		filter	no	1
89	get_comment_author_email		filter	no	1
90	get_comment_author_IP		filter	no	1
91	get_comment_author_link		filter	no	1
92	get_comment_author_url		filter	no	1
93	get_comment_author_url_link		filter	no	1
94	get_comment_date		filter	no	1
95	get_comment_excerpt		filter	no	1
96	get_comment_ID		filter	no	1
97	get_comment_text		filter	no	1
98	get_comment_time		filter	no	1
99	get_comment_type		filter	no	1
100	get_editable_authors		filter	YES	1
101	get_enclosed		filter	YES	1
102	get_others_drafts		filter	YES	1
103	get_pung		filter	YES	1
104	get_the_excerpt		filter	no	1
105	get_the_guid		filter	no	1
106	get_the_modified_time		filter	YES	2
107	get_the_time		filter	no	2
108	get_to_ping		filter	YES	1
109	get_users_drafts		filter	YES	1
110	home_template		filter	no	1
111	icon_dir		filter	YES	1
112	icon_dir_uri		filter	YES	1
113	init		action	no	1
114	kubrick_header_color		filter	YES	1
115	kubrick_header_display		filter	YES	1
116	kubrick_header_image		filter	YES	1
117	link_rating		filter	no	1
118	list_cats		filter	no	4
119	list_cats_exclusions		filter	no	1
120	locale		filter	no	1
121	loginout		filter	no	1
122	loop_end		action	YES	1
123	loop_start		action	YES	1
124	lost_password		action	no	1
125	manage_posts_columns		filter	no	1
126	manage_posts_custom_column		action	no	1
127	mce_browsers		filter	YES	1
128	mce_buttons		filter	YES	1
129	mce_buttons_2		filter	YES	1
130	mce_buttons_3		filter	YES	1
131	mce_options		action	YES	1
132	mce_plugins		filter	YES	1
133	mce_theme		filter	YES	1
134	mce_valid_elements		filter	YES	1
135	mod_rewrite_rules		filter	no	1
136	month_link		filter	no	2
137	name_save_pre		filter	no	2
138	option_{$setting}	note	filter	no	1
139	page_link		filter	no	1
140	page_rewrite_rules		filter	no	1
141	page_template		filter	no	1
142	parse_query		action	no	2
143	password_reset		action	no	1
144	personal_options_update		action	YES	1
145	phone_content		filter	no	1
146	pingback_post		action	no	1
147	ping_status_pre		filter	YES	2
148	plugins_loaded		action	no	1
149	posts_groupby		filter	YES	1
150	posts_join		filter	no	1
151	posts_join_paged		filter	no	1
152	posts_orderby		filter	no	1
153	posts_request		filter	YES	1
154	posts_where		filter	no	1
155	posts_where_paged		filter	no	1
156	post_comments_feed_link		filter	no	1
157	post_link		filter	no	2
158	post_mime_type_pre		filter	YES	1
159	post_rewrite_rules		filter	no	1
160	prepend_attachment		filter	YES	1
161	preprocess_comment		filter	no	1
162	pre_comment_approved		filter	no	1
163	pre_comment_author_email		filter	no	1
164	pre_comment_author_name		filter	no	1
165	pre_comment_author_url		filter	no	1
166	pre_comment_content		filter	no	1
167	pre_comment_user_agent		filter	no	1
168	pre_comment_user_domain		filter	no	1
169	pre_comment_user_ip		filter	no	1
170	pre_get_posts		action	YES	1
171	pre_option_{$option->option_name}	note	filter	no	1
172	pre_ping		action	YES	1
173	pre_user_id		filter	no	1
174	private_to_published		action	no	1
175	profile_personal_options		action	YES	1
176	profile_update		action	YES	1
177	publish_phone		action	no	1
178	publish_post		action	no	1
179	query_string		filter	no	1
180	query_vars		filter	no	1
181	rdf_header		action	YES	1
182	rdf_item		action	YES	1
183	rdf_ns		action	YES	1
184	register		filter	no	1
185	retreive_password		action	no	1
186	retrieve_password		action	no	1
187	rewrite_rules		filter	no	1
188	rewrite_rules_array		filter	no	1
189	richedit_pre		filter	YES	2
190	role_has_cap		filter	YES	1
191	root_rewrite_rules		filter	no	1
192	rss2_head		action	YES	1
193	rss2_item		action	YES	1
194	rss2_ns		action	YES	1
195	rss_head		action	YES	1
196	rss_item		action	YES	1
197	sanitize_title		filter	no	1
198	save_post		action	no	1
199	search_rewrite_rules		filter	no	1
200	show_password_fields		filter	no	3
201	show_user_profile		action	YES	1
202	shutdown		action	no	1
203	simple_edit_form		action	no	1
204	single_post_title		filter	no	2
205	status_save_pre		filter	no	1
206	stylesheet		filter	no	1
207	stylesheet_directory		filter	no	1
208	stylesheet_directory_uri		filter	no	1
209	stylesheet_uri		filter	no	1
210	switch_theme		action	no	3
211	template		filter	no	1
212	template_directory		filter	no	1
213	template_directory_uri		filter	no	1
214	template_redirect		action	no	1
215	theme_root		filter	no	1
216	theme_root_uri		filter	no	1
217	the_author		filter	YES	1
218	the_author_email		filter	no	1
219	the_category		filter	no	2
220	the_category_rss		filter	no	1
221	the_content		filter	no	3
222	the_content_rss		filter	YES	1
223	the_date		filter	no	1
224	the_excerpt		filter	no	2
225	the_excerpt_rss		filter	no	1
226	the_modified_time		filter	YES	1
227	the_permalink		filter	no	2
228	the_posts		filter	no	1
229	the_time		filter	no	1
230	the_title		filter	no	8
231	the_title_rss		filter	no	2
232	the_weekday		filter	no	1
233	the_weekday_date		filter	no	1
234	thumbnail_filename		filter	YES	1
235	tinymce_before_init		action	YES	1
236	title_edit_pre		filter	no	1
237	title_save_pre		filter	no	2
238	trackback_post		action	no	1
239	update_user_query		filter	YES	1
240	uploading_iframe_src		filter	YES	2
241	upload_dir		filter	YES	1
242	upload_mimes		filter	YES	1
243	user_has_cap		filter	YES	1
244	user_register		action	no	1
245	wp_authenticate		action	no	1
246	wp_blacklist_check		action	no	1
247	wp_footer		action	no	1
248	wp_head		action	no	1
249	wp_insert_post		action	YES	1
250	wp_list_pages		filter	no	1
251	wp_login		action	no	1
252	wp_logout		action	no	1
253	wp_meta		action	no	1
254	wp_set_comment_status		action	no	2
255	wp_title		filter	YES	1
256	xmlrpc_methods		filter	no	1
257	year_link		filter	no	2
258	{$page_hook}	note	action	no	1
259	{$tag}	note	action	no	1
260	{$tag}	note	filter	no	1
261	{$type}_template	note	filter	no	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.