User:Miqrogroove

I'm continually frustrated by my own inability to quickly find code in the WordPress core, so here's my solution. All files are version 2.8.x unless otherwise specified.

Additional Resources

• WordPress Latest (PHPXRef)
• WordPress trunk (phpDocumentor)
• TracBrowser

wp-admin

wp-admin/edit-category-form.php

• _fill_empty_category

wp-admin/edit-form-advanced.php (2.9)

(all functions have been deleted)

wp-admin/includes

wp-admin/includes/meta-boxes.php (2.9)

• link_submit_meta_box
• link_categories_meta_box
• link_target_meta_box
• link_xfn_meta_box
• link_advanced_meta_box
• page_attributes_meta_box
• post_author_meta_box
• post_categories_meta_box
• post_comment_meta_box
• post_comment_status_meta_box
• post_custom_meta_box
• post_excerpt_meta_box
• post_revisions_meta_box
• post_slug_meta_box
• post_submit_meta_box
• post_tags_meta_box
• post_thumbnail_meta_box @since 2.9
• post_trackback_meta_box
• xfn_check

wp-admin/includes/misc.php

• codepress_footer_js
• codepress_get_lang
• extract_from_markers
• got_mod_rewrite
• iis7_add_rewrite_rule
• iis7_delete_rewrite_rule
• iis7_rewrite_rule_exists
• iis7_save_url_rewrite_rules
• iis7_supports_permalinks
• insert_with_markers
• save_mod_rewrite_rules
• saveDomDocument
• set_screen_options
• show_message
• update_home_siteurl
• update_recently_edited
• url_shorten
• use_codepress
• wp_doc_link_parse
• wp_menu_unfold
• wp_reset_vars @since 2.1
• win_is_writable

wp-admin/includes/plugin.php (2.9)

• _get_plugin_data_markup_translate
• activate_plugin
• activate_plugins
• add_comments_page
• add_dashboard_page
• add_links_page
• add_management_page
• add_media_page
• add_menu_page
• add_object_page
• add_option_update_handler
• add_option_whitelist
• add_options_page
• add_pages_page
• add_posts_page
• add_submenu_page
• add_theme_page
• add_users_page
• add_utility_page
• deactivate_plugins
• delete_plugins
• get_admin_page_parent
• get_admin_page_title
• get_plugin_data
• get_plugin_files
• get_plugin_page_hook
• get_plugin_page_hookname
• get_plugins
• is_plugin_active
• is_uninstallable_plugin
• option_update_filter
• register_setting
• remove_option_update_handler
• remove_option_whitelist
• settings_fields
• uninstall_plugin
• unregister_setting
• user_can_access_admin_page
• validate_active_plugins
• validate_plugin

wp-admin/includes/post.php

• _admin_notice_post_locked
• _fix_attachment_links
• _relocate_children
• _wp_translate_postdata
• add_meta
• bulk_edit_posts
• delete_meta
• edit_post
• get_available_post_mime_types
• get_available_post_statuses
• get_default_page_to_edit
• get_default_post_to_edit
• get_meta_keys
• get_post_meta_by_id
• get_post_to_edit
• get_sample_permalink
• get_sample_permalink_html
• has_meta
• post_exists
• post_preview
• postbox_classes
• update_meta
• wp_check_post_lock
• wp_create_post_autosave
• wp_edit_attachments_query
• wp_edit_posts_query
• wp_set_post_lock
• wp_tiny_mce
• wp_write_post
• write_post

wp-admin/includes/taxonomy.php

• category_exists
• get_category_to_edit
• get_tags_to_edit
• get_terms_to_edit
• tag_exists
• wp_create_categories
• wp_create_category
• wp_create_tag
• wp_create_term
• wp_delete_category
• wp_insert_category
• wp_update_category

wp-admin/includes/template.php

• __checked_selected_helper
• _admin_search_query
• _cat_row
• _cat_rows
• _draft_or_post_title
• _list_meta_row
• _page_rows
• _post_row
• _post_states
• _tag_row
• _wp_comment_row
• _wp_get_comment_list
• add_contextual_help
• add_meta_box
• add_settings_field
• add_settings_section
• browse_happy
• cat_rows
• checked
• compression_test
• display_page_row
• do_meta_boxes
• do_settings_fields
• do_settings_sections
• drag_drop_help
• dropdown_categories
• dropdown_link_categories
• favorite_actions
• find_posts_div
• get_column_headers
• get_hidden_columns
• get_hidden_meta_boxes
• get_inline_data
• iframe_footer
• iframe_header
• inline_edit_row
• inline_edit_term_row
• link_cat_row
• list_meta
• manage_columns_prefs
• meta_box_prefs
• meta_form
• page_rows
• page_template_dropdown
• parent_dropdown
• plugins_search_help
• post_rows
• print_column_headers
• register_column_headers
• remove_meta_box
• screen_icon
• screen_layout
• screen_meta
• screen_options
• selected
• tag_rows
• tb_close
• the_attachment_links
• the_post_password
• touch_time
• user_row
• widgets_help
• wp_category_checklist
• wp_comment_reply
• wp_convert_bytes_to_hr
• wp_convert_hr_to_bytes
• wp_dropdown_cats
• wp_dropdown_roles
• wp_import_upload_form
• wp_link_category_checklist
• wp_manage_media_columns
• wp_manage_pages_columns
• wp_manage_posts_columns
• wp_max_upload_size
• wp_popular_terms_checklist
• wp_remember_old_slug

class Walker_Category_Checklist

• end_el
• end_lvl
• start_el
• start_lvl

wp-includes

wp-includes/author-template.php (2.9)

• get_author_posts_url
• get_the_author
• get_the_author_meta
• get_the_author_posts
• get_the_modified_author
• the_author
• the_author_link
• the_author_meta
• the_author_posts
• the_author_posts_link
• the_modified_author
• wp_list_authors

wp-includes/category.php

• _make_cat_compat
• cat_is_ancestor_of
• clean_category_cache
• get_all_category_ids
• get_cat_ID
• get_cat_name
• get_categories
• get_category
• get_category_by_path
• get_category_by_slug
• get_tag
• get_tags
• sanitize_category
• sanitize_category_field
• update_category_cache

wp-includes/category-template.php

• _usort_terms_by_ID
• _usort_terms_by_name
• category_description
• default_topic_count_text
• get_category_link
• get_category_parents
• get_tag_link
• get_the_category
• get_the_category_by_ID
• get_the_category_list
• get_the_tag_list
• get_the_tags
• get_the_term_list
• get_the_terms
• has_tag
• in_category
• tag_description
• term_description
• the_category
• the_tags
• the_terms
• walk_category_dropdown_tree
• walk_category_tree
• wp_dropdown_categories
• wp_generate_tag_cloud
• wp_list_categories
• wp_tag_cloud

wp-includes/classes.php

• is_wp_error

class Walker

• display_element
• end_el
• end_lvl
• get_number_of_root_elements
• paged_walk
• start_el
• start_lvl
• unset_children
• walk

class Walker_Category

• end_el
• end_lvl
• start_el
• start_lvl

class Walker_CategoryDropdown

• start_el

class Walker_Page

• end_el
• end_lvl
• start_el
• start_lvl

class Walker_PageDropdown

• start_el

class WP

• add_query_var
• build_query_string
• handle_404
• init
• main
• parse_request
• query_posts
• register_globals
• send_headers
• set_query_var
• WP

class WP_Ajax_Response

• add
• send
• WP_Ajax_Response

class WP_Error

• add
• add_data
• get_error_code
• get_error_codes
• get_error_data
• get_error_message
• get_error_messages
• WP_Error

class WP_MatchesMapRegex

• _map
• apply
• callback
• WP_MatchesMapRegex

wp-includes/comment-template.php

• cancel_comment_reply_link
• comment_author
• comment_author_email
• comment_author_email_link
• comment_author_IP
• comment_author_link
• comment_author_url
• comment_author_url_link
• comment_class
• comment_date
• comment_excerpt
• comment_form_title
• comment_ID
• comment_id_fields
• comment_reply_link
• comment_text
• comment_time
• comment_type
• comments_link
• comments_number
• comments_open
• comments_popup_link
• omments_popup_script
• comments_template
• get_cancel_comment_reply_link
• get_comment_author
• get_comment_author_email
• get_comment_author_email_link
• get_comment_author_IP
• get_comment_author_link
• get_comment_author_url
• get_comment_author_url_link
• get_comment_class
• get_comment_date
• get_comment_excerpt
• get_comment_ID
• get_comment_link
• get_comment_reply_link
• get_comment_text
• get_comment_time
• get_comment_type
• get_comments_link
• get_comments_number
• get_post_reply_link
• get_trackback_url
• pings_open
• post_reply_link
• trackback_rdf
• trackback_url
• wp_comment_form_unfiltered_html_nonce

class Walker_Comment

• end_el
• end_lvl
• start_el
• start_lvl

wp-includes/formatting.php

• _deep_replace
• _links_add_base
• _links_add_target
• _make_email_clickable_cb
• _make_url_clickable_cb
• _make_web_ftp_clickable_cb
• _wp_specialchars
• _wptexturize_pushpop_element
• addslashes_gpc
• antispambot
• attribute_escape
• backslashit
• balanceTags
• clean_pre
• clean_url
• convert_chars
• convert_smilies
• ent2ncr
• esc_attr
• esc_html
• esc_js
• esc_sql
• esc_url
• esc_url_raw
• force_balance_tags
• format_to_edit
• format_to_post
• funky_javascript_callback
• funky_javascript_fix
• get_date_from_gmt
• get_gmt_from_date
• htmlentities2
• human_time_diff
• is_email
• iso8601_timezone_to_offset
• iso8601_to_datetime
• js_escape
• like_escape
• links_add_base_url
• links_add_target
• make_clickable
• normalize_whitespace
• popuplinks
• remove_accents
• sanitize_email
• sanitize_file_name
• sanitize_html_class
• sanitize_option
• sanitize_sql_orderby
• sanitize_text_field
• sanitize_title
• sanitize_title_with_dashes
• sanitize_url
• sanitize_user
• seems_utf8
• shortcode_unautop
• stripslashes_deep
• tag_escape
• trailingslashit
• translate_smiley
• untrailingslashit
• urlencode_deep
• utf8_uri_encode
• wp_check_invalid_utf8
• wp_html_excerpt
• wp_htmledit_pre
• wp_iso_descrambler
• wp_make_link_relative
• wp_parse_str
• wp_pre_kses_less_than
• wp_pre_kses_less_than_callback
• wp_rel_nofollow
• wp_rel_nofollow_callback
• wp_richedit_pre
• wp_specialchars
• wp_specialchars_decode
• wp_sprintf
• wp_sprintf_l
• wp_strip_all_tags
• wp_trim_excerpt
• wpautop
• wptexturize
• zeroise

wp-includes/functions.php (2.9)

• _cleanup_header_comment
• _search_terms_tidy
• _wp_timezone_choice_usort_callback @since 2.9
• add_magic_quotes
• add_option
• add_site_option @since 2.8
• add_query_arg
• bool_from_yn
• build_query
• cache_javascript_headers
• current_time
• date_i18n
• debug_fclose
• debug_fopen
• debug_fwrite
• delete_all_user_settings
• delete_option
• delete_site_option @since 2.9
• delete_site_transient @since 2.9
• delete_transient
• delete_user_setting
• do_enclose
• do_feed
• do_feed_atom
• do_feed_rdf
• do_feed_rss
• do_feed_rss2
• do_robots
• form_option
• get_all_user_settings
• get_alloptions
• get_allowed_mime_types
• get_file_data
• get_num_queries
• get_option
• get_site_option @since 2.8
• get_site_transient
• get_status_header_desc
• get_transient
• get_user_setting
• get_weekstartend
• is_blog_installed
• is_new_day
• is_serialized
• is_serialized_string
• make_url_footnote
• maybe_serialize
• maybe_unserialize
• mysql2date
• nocache_headers
• number_format_i18n
• path_is_absolute
• path_join
• remove_query_arg
• set_site_transient
• set_transient
• set_user_setting
• size_format
• status_header
• update_option
• update_site_option @since 2.8
• wp
• wp_check_filetype
• wp_die
• wp_explain_nonce
• wp_ext2type
• wp_get_http
• wp_get_http_headers
• wp_get_nocache_headers
• wp_get_original_referer
• wp_get_referer
• wp_load_alloptions
• wp_maybe_load_embeds
• wp_mkdir_p
• wp_nonce_ays
• wp_nonce_field
• wp_nonce_url
• wp_original_referer_field
• wp_protect_special_option
• wp_referer_field
• wp_remote_fopen
• wp_scheduled_delete
• wp_set_all_user_settings
• wp_timezone_choice @since 2.9
• wp_timezone_override_offset @since 2.8
• wp_timezone_supported @since 2.9
• wp_unique_filename
• wp_upload_bits
• wp_upload_dir
• wp_user_settings
• xmlrpc_getpostcategory
• xmlrpc_getposttitle
• xmlrpc_removepostdata

wp-includes/general-template.php

• add_thickbox
• allowed_tags
• automatic_feed_links
• bloginfo
• calendar_week_mod
• delete_get_calendar_cache
• feed_links
• feed_links_extra
• get_archives_link
• get_bloginfo
• get_calendar
• get_footer
• get_header
• get_post_modified_time
• get_post_time
• get_search_form
• get_search_query
• get_sidebar
• get_the_generator
• get_the_modified_date
• get_the_modified_time
• get_the_time
• language_attributes
• noindex
• paginate_links
• rich_edit_exists
• rsd_link
• single_cat_title
• single_month_title
• single_post_title
• single_tag_title
• the_date
• the_date_xml
• the_editor
• the_generator
• the_modified_date
• the_modified_time
• the_search_query
• the_time
• the_weekday
• the_weekday_date
• user_can_richedit
• wlwmanifest_link
• wp_admin_css
• wp_admin_css_color
• wp_admin_css_uri
• wp_default_editor
• wp_footer
• wp_generator
• wp_get_archives
• wp_head
• wp_login_url
• wp_loginout
• wp_logout_url
• wp_lostpassword_url
• wp_meta
• wp_register
• wp_title

wp-includes/link-template.php

• _get_page_link
• a
• adjacent_post_link
• adjacent_posts_rel_link
• admin_url
• content_url
• edit_bookmark_link
• edit_comment_link
• edit_post_link
• edit_tag_link
• get_adjacent_post
• get_adjacent_post_rel_link
• get_attachment_link
• get_author_feed_link
• get_boundary_post
• get_boundary_post_rel_link
• get_category_feed_link
• get_comments_pagenum_link
• get_day_link
• get_edit_bookmark_link
• get_edit_comment_link
• get_edit_post_link
• get_edit_tag_link
• get_feed_link
• get_index_rel_link
• get_month_link
• get_next_comments_link
• get_next_post
• get_next_posts_link
• get_next_posts_page_link
• get_page_link
• get_pagenum_link
• get_parent_post_rel_link
• get_permalink
• get_post_comments_feed_link
• get_posts_nav_link
• get_previous_comments_link
• get_previous_post
• get_previous_posts_link
• get_previous_posts_page_link
• get_search_comments_feed_link
• get_search_feed_link
• get_shortcut_link
• get_tag_feed_link
• get_year_link
• includes_url
• index_rel_link
• next_comments_link
• next_post_link
• next_post_rel_link
• next_posts
• next_posts_link
• paginate_comments_links
• parent_post_rel_link
• permalink_anchor
• plugins_url
• post_comments_feed_link
• post_permalink
• posts_nav_link
• prev_post_rel_link
• previous_comments_link
• previous_post_link
• previous_posts
• previous_posts_link
• site_url
• start_post_rel_link
• the_permalink
• user_trailingslashit

wp-includes/pluggable.php

• auth_redirect
• check_admin_referer
• check_ajax_referer
• get_avatar
• get_currentuserinfo
• get_user_by
• get_user_by_email
• get_userdata
• get_userdatabylogin
• is_user_logged_in
• set_current_user
• wp_authenticate
• wp_check_password
• wp_clear_auth_cookie
• wp_clearcookie
• wp_create_nonce
• wp_generate_auth_cookie
• wp_generate_password
• wp_get_cookie_login
• wp_get_current_user
• wp_hash
• wp_hash_password
• wp_login
• wp_logout
• wp_mail
• wp_new_user_notification
• wp_nonce_tick
• wp_notify_moderator
• wp_notify_postauthor
• wp_parse_auth_cookie
• wp_password_change_notification
• wp_rand
• wp_redirect
• wp_safe_redirect
• wp_salt
• wp_sanitize_redirect
• wp_set_auth_cookie
• wp_set_current_user
• wp_set_password
• wp_setcookie
• wp_text_diff
• wp_validate_auth_cookie
• wp_validate_redirect
• wp_verify_nonce

wp-includes/plugin.php

• _wp_call_all_hook
• _wp_filter_build_unique_id
• add_action
• add_filter
• apply_filters
• current_filter
• did_action
• do_action
• do_action_ref_array
• has_action
• has_filter
• plugin_basename
• plugin_dir_path
• plugin_dir_url
• register_activation_hook
• register_deactivation_hook
• register_uninstall_hook
• remove_action
• remove_all_actions
• remove_all_filters
• remove_filter

wp-includes/post.php

• _future_post_hook
• _get_post_ancestors
• _publish_post_hook
• _save_post_hook
• _set_preview
• _show_post_preview
• _transition_post_status
• _wp_get_post_autosave_hack
• _wp_post_revision_fields
• _wp_put_post_revision
• add_ping
• add_post_meta
• check_and_publish_future_post
• clean_page_cache
• clean_post_cache
• delete_post_meta
• delete_post_meta_by_key
• get_all_page_ids
• get_attached_file
• get_children
• get_enclosed
• get_extended
• get_lastpostdate
• get_lastpostmodified
• get_page
• get_page_by_path
• get_page_by_title
• get_page_children
• get_page_hierarchy
• get_page_statuses
• get_page_uri
• get_pages
• get_post
• get_post_ancestors
• get_post_custom
• get_post_custom_keys
• get_post_custom_values
• get_post_field
• get_post_meta
• get_post_mime_type
• get_post_status
• get_post_statuses
• get_post_type
• get_posts
• get_private_posts_cap_sql
• get_pung
• get_to_ping
• is_local_attachment
• is_sticky
• sanitize_post
• sanitize_post_field
• set_post_type
• stick_post
• trackback_url_list
• unstick_post
• update_attached_file
• update_page_cache
• update_post_cache
• update_post_caches
• update_post_meta
• update_postmeta_cache
• wp_add_post_tags
• wp_attachment_is_image
• wp_check_for_changed_slugs
• wp_count_attachments
• wp_count_posts
• wp_delete_attachment
• wp_delete_post
• wp_delete_post_revision
• wp_get_attachment_metadata
• wp_get_attachment_thumb_file
• wp_get_attachment_thumb_url
• wp_get_attachment_url
• wp_get_post_autosave
• wp_get_post_categories
• wp_get_post_revision
• wp_get_post_revisions
• wp_get_post_tags
• wp_get_post_terms
• wp_get_recent_posts
• wp_get_single_post
• wp_insert_attachment
• wp_insert_post
• wp_is_post_autosave
• wp_is_post_revision
• wp_match_mime_types
• wp_mime_type_icon
• wp_post_mime_type_where
• wp_publish_post
• wp_restore_post_revision
• wp_save_post_revision
• wp_set_post_categories
• wp_set_post_tags
• wp_set_post_terms
• wp_transition_post_status
• wp_unique_post_slug
• wp_update_attachment_metadata
• wp_update_post

wp-includes/post-template.php

• body_class
• get_attachment_icon
• get_attachment_icon_src
• get_attachment_innerHTML
• get_body_class
• get_post_class
• get_the_attachment_link
• get_the_content
• get_the_excerpt
• get_the_guid
• get_the_ID
• get_the_password_form
• get_the_title
• has_excerpt
• is_page_template
• post_class
• post_custom
• post_password_required
• prepend_attachment
• sticky_class
• the_attachment_link
• the_content
• the_excerpt
• the_guid
• the_ID
• the_meta
• the_title
• the_title_attribute
• walk_page_dropdown_tree
• walk_page_tree
• wp_dropdown_pages
• wp_get_attachment_link
• wp_link_pages
• wp_list_pages
• wp_list_post_revisions
• wp_page_menu
• wp_post_revision_title

wp-includes/query.php

• get_query_var
• have_comments
• have_posts
• in_the_loop
• is_404
• is_admin
• is_archive
• is_attachment
• is_author
• is_category
• is_comments_popup
• is_date
• is_day
• is_feed
• is_front_page
• is_home
• is_month
• is_page
• is_paged
• is_plugin_page
• is_preview
• is_robots
• is_search
• is_single
• is_singular
• is_tag
• is_tax
• is_time
• is_trackback
• is_year
• query_posts
• rewind_posts
• set_query_var
• setup_postdata
• the_comment
• the_post
• wp_old_slug_redirect
• wp_reset_query

class WP_Query

• fill_query_vars
• get
• get_posts
• get_queried_object
• get_queried_object_id
• have_comments
• have_posts
• init
• init_query_flags
• next_comment
• next_post
• parse_query
• parse_query_vars
• query
• rewind_comments
• rewind_posts
• set
• set_404
• the_comment
• the_post
• WP_Query

wp-includes/taxonomy.php

• _get_term_children
• _get_term_hierarchy
• _pad_term_counts
• _update_post_term_count
• clean_object_term_cache
• clean_term_cache
• create_initial_taxonomies
• get_object_taxonomies
• get_object_term_cache
• get_objects_in_term
• get_post_taxonomies
• get_taxonomy
• get_term
• get_term_by
• get_term_children
• get_term_field
• get_term_link
• get_term_to_edit
• get_terms
• get_the_taxonomies
• is_object_in_term
• is_taxonomy
• is_taxonomy_hierarchical
• is_term
• register_taxonomy
• sanitize_term
• sanitize_term_field
• the_taxonomies
• update_object_term_cache
• update_term_cache
• wp_count_terms
• wp_defer_term_counting
• wp_delete_object_term_relationships
• wp_delete_term
• wp_get_object_terms
• wp_insert_term
• wp_set_object_terms
• wp_unique_term_slug
• wp_update_term
• wp_update_term_count
• wp_update_term_count_now