H

$page_hook – action

$type_template_hierarchy – filter

activate_header – action

activate_wp_head – action

admin_head – action

admin_head_$content_func – action

admin_head-$hook_suffix – action

admin_head-$page – action

admin_head-edit-comments.php – action

admin_head-edit.php – action

admin_head-media-upload-popup – action

admin_head-nav-menus.php – action

admin_head-press-this.php – action

admin_head-themes.php – action

admin_head-widgets.php – action

admin_post_thumbnail_html – filter

akismet_admin_page_hook_suffixes – filter

akismet_http_request_pre – action

akismet_https_disabled – action

akismet_https_request_failure – action

akismet_https_request_pre – action

allowed_http_origin – filter

allowed_http_origins – filter

allowed_redirect_hosts – filter

atom_head – action

auth_cookie_bad_hash – action

before_signup_header – action

begin_fetch_post_thumbnail_html – action

block_editor_meta_box_hidden_fields – action

browse-happy-notice – filter

comment_moderation_headers – filter

comment_notification_headers – filter

comments_atom_head – action

commentsrss2_head – action

contextual_help – filter

contextual_help_list – filter

custom_header_options – action

default_contextual_help – filter

default_hidden_columns – filter

default_hidden_meta_boxes – filter

deprecated_hook_run – action

deprecated_hook_trigger_error – filter

dynamic_sidebar_has_widgets – filter

embed_handler_html – filter

embed_head – action

embed_html – filter

embed_oembed_html – filter

embed_site_title_html – filter

end_fetch_post_thumbnail_html – action

enter_title_here – filter

esc_html – filter

exit_on_http_head – filter

extra_$context_headers – filter

extra_theme_headers – filter

flush_rewrite_rules_hard – filter

force_filtered_html_on_import – filter

get_header – action

get_header_image_tag – filter

get_header_video_url – filter

get_sample_permalink_html – filter

handle_bulk_actions- – filter

handle_bulk_actions-$screen – filter

handle_network_bulk_actions- – filter

handle_network_bulk_actions-$screen – filter

has_nav_menu – filter

has_post_thumbnail – filter

header_video_settings – filter

heartbeat_nopriv_received – filter

heartbeat_nopriv_send – filter

heartbeat_nopriv_tick – action

heartbeat_received – filter

heartbeat_send – filter

heartbeat_settings – filter

heartbeat_tick – action

hidden_columns – filter

hidden_meta_boxes – filter

home_url – filter

htmledit_pre – filter

http_api_curl – action

http_api_debug – action

http_api_transports – filter

http_headers_useragent – filter

http_origin – filter

http_request_args – filter

http_request_host_is_external – filter

http_request_redirection_count – filter

http_request_reject_unsafe_urls – filter

http_request_timeout – filter

http_request_version – filter

http_response – filter

https_local_ssl_verify – filter

https_ssl_verify – filter

human_time_diff – filter

in_admin_header – action

install_plugins_table_header – action

install_themes_table_header – action

load-$page_hook – action

login_head – action

login_header – action

login_headertext – filter

login_headertext – filter

login_headertext – filter