New plugin hooks in WordPress 2.2

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	admin_xml_ns		action	YES	1
2	app_publish_post		action	YES	1
3	atom_enclosure		filter	YES	1
4	comment_atom_entry		action	YES	1
5	comment_feed_groupby		filter	YES	1
6	comment_feed_join		filter	YES	1
7	comment_feed_where		filter	YES	1
8	comment_loop_start		action	YES	1
9	created_category		action	YES	1
10	deleted_link		action	YES	1
11	deleted_post		action	YES	1
12	edited_category		action	YES	1
13	getarchives_join		filter	YES	1
14	getarchives_where		filter	YES	1
15	get_bloginfo_rss		filter	YES	1
16	get_sidebar		action	YES	1
17	get_wp_title_rss		filter	YES	1
18	import_done		action	YES	1
19	link_category		filter	YES	1
20	link_description		filter	YES	1
21	link_title		filter	YES	1
22	ngettext		filter	YES	1
23	phpmailer_init		action	YES	1
24	pre_option_{$setting}	note	filter	YES	1
25	pub_priv_sql_capability		filter	YES	1
26	rss_enclosure		filter	YES	1
27	script_loader_src		filter	YES	1
28	sidebar_admin_page		action	YES	1
29	sidebar_admin_setup		action	YES	1
30	status_header		filter	YES	1
31	theme_mod_{$name}	note	filter	YES	1
32	the_meta_key		filter	YES	1
33	trackback_url		filter	YES	1
34	url_to_postid		filter	YES	1
35	user_trailingslashit		filter	YES	1
36	widgets_init		action	YES	1
37	wp_mail		filter	YES	1
38	wp_mail_from		filter	YES	1
39	wp_title_rss		filter	YES	1
40	xmlrpc_text_filters		filter	YES	1
41	_admin_menu		action	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.