Function Arguments Return Description Version Path

addslashes_gpc

(string) $gpc
(string) Returns a string escaped with slashes.

Adds slashes to escape strings.

0.71 wp-includes / formatting.php

add_action

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

Hooks a function on to a specific action.

1.2 wp-includes / plugin.php

add_comments_page

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

Add sub menu page to the comments main menu.

wp-admin / includes / plugin.php

add_comment_meta

(int) $comment_id
(string) $meta_key
(mixed) $meta_value
(bool) $unique = false
(int|boolean) Meta ID on success, false on failure.

Add meta data field to a comment.

2.9 wp-includes / comment.php

add_contextual_help

(string) $screen
(string) $help
(void)

Add contextual help text for a page.

2.7 wp-admin / includes / deprecated.php

add_cssclass

 $add
 $class
(void) wp-admin / includes / menu.php

add_custom_background

(callback) $wp_head_callback = ''
(callback) $admin_head_callback = ''
(callback) $admin_preview_callback = ''
(void)

Add callbacks for background image display.

3.0 wp-includes / deprecated.php

add_custom_image_header

(callback) $wp_head_callback
(callback) $admin_head_callback
(callback) $admin_preview_callback = ''
(void)

Add callbacks for image header display.

2.1 wp-includes / deprecated.php

add_dashboard_page

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

Add sub menu page to the Dashboard main menu.

wp-admin / includes / plugin.php

add_editor_style

(mixed) $stylesheet = 'editor-style.css'
(void)

Add callback for custom TinyMCE editor stylesheets.

3.0 wp-includes / theme.php