Function Arguments Return Description Version Path

add_action

(string) $tag
(callable) $function_to_add
(int) $priority = 10
(int) $accepted_args = 1
(true) Will always return true.

Hooks a function on to a specific action.

1.2 wp-includes / plugin.php

add_filter

(string) $tag
(callable) $function_to_add
(int) $priority = 10
(int) $accepted_args = 1
(true)

Hook a function or method to a specific filter action.

0.71 wp-includes / plugin.php

add_plugins_page

(string) $page_title
(string) $menu_title
(string) $capability
(string) $menu_slug
(callable) $function = ''
(false|string) The resulting page's hook_suffix, or false if the user does not have the capability required.

Add submenu page to the Plugins main menu.

wp-admin / includes / plugin.php

add_rewrite_endpoint

(string) $name
(int) $places
(string|bool) $query_var = true
(void)

Add an endpoint, like /trackback/.

2.1 wp-includes / rewrite.php

adjacent_posts_rel_link_wp_head

(void)

Displays relational links for the posts adjacent to the current post for single post pages.

3.0 wp-includes / link-template.php

allowed_tags

(string) HTML allowed tags entity encoded.

Display all of the allowed tags in HTML format with attributes.

1.0.1 wp-includes / general-template.php

check_comment_flood_db

(void)

Hooks WP’s native database-based comment-flood check.

2.3 wp-includes / comment.php

codepress_footer_js

(void)

Adds JavaScript required to make CodePress work on the theme/plugin editors.

2.8 wp-admin / includes / deprecated.php

create_initial_taxonomies

(void)

Creates the initial taxonomies.

2.8 wp-includes / taxonomy.php

deactivate_plugins

(string|array) $plugins
(bool) $silent = false
(mixed) $network_wide = null
(void)

Deactivate a single plugin or multiple plugins.

2.5 wp-admin / includes / plugin.php