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