Check out the new "WordPress 2.0 Only" category, which contains all the new hooks introduced in WordPress 2.0!
WP Hooks List
Documented Undocumented
- 404_template
- activate_{plugin-filename}
- activity_box_end
- add_attachment
- add_category
- add_link
- add_ping
- admin_footer
- admin_head
- admin_head-{page_hook}
- admin_menu
- admin_notices
- admin_print_scripts
- admin_print_scripts-{page_hook}
- all_options
- archive_template
- atom_entry
- atom_head
- atom_ns
- attachment_icon
- attachment_innerHTML
- attachment_link
- attachment_max_dims
- author_email
- author_feed_link
- author_link
- author_rewrite_rules
- author_template
- bloginfo
- category_description
- category_feed_link
- category_link
- category_rewrite_rules
- category_save_pre
- category_template
- cat_row
- cat_rows
- check_admin_referer
- check_passwords
- comments_number
- comments_popup_template
- comments_rewrite_rules
- comments_template
- comment_author
- comment_author_rss
- comment_closed
- comment_content_presave
- comment_edit_pre
- comment_edit_redirect
- comment_email
- comment_excerpt
- comment_flood_trigger
- comment_form
- comment_id_not_found
- comment_moderation_subject
- comment_moderation_text
- comment_notification_headers
- comment_notification_subject
- comment_notification_text
- comment_on_draft
- comment_post
- comment_post_redirect
- comment_save_pre
- comment_status_pre
- comment_text
- comment_text_rss
- comment_url
- content_edit_pre
- content_save_pre
- core_files_loaded
- create_category
- create_user_query
- date_rewrite_rules
- date_template
- day_link
- dbx_page_advanced
- dbx_page_sidebar
- dbx_post_advanced
- dbx_post_sidebar
- deactivate_{plugin-filename}
- default_content
- default_excerpt
- default_title
- delete_attachment
- delete_category
- delete_comment
- delete_link
- delete_post
- delete_user
- edit_attachment
- edit_category
- edit_comment
- edit_form_advanced
- edit_link
- edit_page_form
- edit_post
- edit_user_profile
- excerpt_edit_pre
- excerpt_save_pre
- feed_link
- Filter vs. Action
- format_to_edit
- format_to_post
- generate_rewrite_rules
- gettext
- get_category
- get_comments_number
- get_comment_author
- get_comment_author_email
- get_comment_author_IP
- get_comment_author_link
- get_comment_author_url
- get_comment_author_url_link
- get_comment_date
- get_comment_excerpt
- get_comment_ID
- get_comment_text
- get_comment_time
- get_comment_type
- get_editable_authors
- get_enclosed
- get_others_drafts
- get_pung
- get_the_excerpt
- get_the_guid
- get_the_modified_time
- get_the_time
- get_to_ping
- get_users_drafts
- home_template
- How to Contribute to This Project
- icon_dir
- icon_dir_uri
- init
- link_rating
- list_cats
- list_cats_exclusions
- load-{page_hook}
- locale
- loginout
- login_errors
- login_form
- login_head
- login_headertitle
- login_headerurl
- login_message
- loop_end
- loop_start
- lostpassword_form
- lostpassword_post
- lost_password
- manage_posts_columns
- manage_posts_custom_column
- mce_browsers
- mce_buttons
- mce_buttons_2
- mce_buttons_3
- mce_options
- mce_plugins
- mce_theme
- mce_valid_elements
- mod_rewrite_rules
- month_link
- nag_posts_limit
- name_save_pre
- option_{option-name}
- paged_template
- page_link
- page_rewrite_rules
- page_template
- parse_query
- password_reset
- personal_options_update
- phone_content
- pingback_post
- ping_status_pre
- plugins_loaded
- postmeta_form_limit
- posts_groupby
- posts_join
- posts_join_paged
- posts_orderby
- posts_request
- posts_where
- posts_where_paged
- post_comments_feed_link
- post_comment_text
- post_link
- post_mime_type_pre
- post_rewrite_rules
- prepend_attachment
- preprocess_comment
- preview_post_link
- pre_category_description
- pre_category_name
- pre_category_nicename
- pre_comment_approved
- pre_comment_author_email
- pre_comment_author_name
- pre_comment_author_url
- pre_comment_content
- pre_comment_user_agent
- pre_comment_user_domain
- pre_comment_user_ip
- pre_get_posts
- pre_link_description
- pre_link_image
- pre_link_name
- pre_link_notes
- pre_link_rel
- pre_link_rss
- pre_link_target
- pre_link_url
- pre_option_{option-name}
- pre_ping
- pre_user_description
- pre_user_display_name
- pre_user_email
- pre_user_first_name
- pre_user_id
- pre_user_last_name
- pre_user_login
- pre_user_nicename
- pre_user_nickname
- pre_user_url
- private_to_published
- profile_personal_options
- profile_update
- publish_phone
- publish_post
- query_string
- query_vars
- rdf_header
- rdf_item
- rdf_ns
- register
- register_form
- register_post
- restrict_manage_posts
- retreive_password
- retrieve_password
- rewrite_rules
- rewrite_rules_array
- richedit_pre
- role_has_cap
- root_rewrite_rules
- rss2_head
- rss2_item
- rss2_ns
- rss_head
- rss_item
- sanitize_title
- sanitize_user
- save_post
- Search API
- search_rewrite_rules
- search_template
- set_current_user
- show_password_fields
- show_user_profile
- shutdown
- simple_edit_form
- single_post_title
- single_template
- status_save_pre
- stylesheet
- stylesheet_directory
- stylesheet_directory_uri
- stylesheet_uri
- switch_theme
- template
- template_directory
- template_directory_uri
- template_redirect
- theme_root
- theme_root_uri
- the_author
- the_author_email
- the_category
- the_category_rss
- the_content
- the_content_rss
- the_date
- the_excerpt
- the_excerpt_rss
- the_modified_time
- the_permalink
- the_posts
- the_time
- the_title
- the_title_rss
- the_weekday
- the_weekday_date
- thumbnail_filename
- tinymce_before_init
- title_edit_pre
- title_save_pre
- trackback_post
- update_option_{option-name}
- update_user_query
- uploading_iframe_src
- upload_dir
- upload_mimes
- user_has_cap
- user_register
- validate_username
- wp_authenticate
- wp_blacklist_check
- wp_footer
- wp_head
- wp_insert_post
- wp_list_pages
- wp_login
- wp_logout
- wp_meta
- wp_set_comment_status
- wp_title
- xmlrpc_methods
- year_link